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Guppy male to female ratio

Guppies are generally kept in the ratio of 1 male over 2 to 3 female guppies. Guppies (Poecilia reticulata) are one of the most popular tropical fish. They are very popular among the fish lovers across the world. Guppies are so famous because they look very pretty and easy to look after Conclusion On Best Guppy Male To Female Ratio The ideal guppy male to female ratio is 1:3. Suppose you have a higher number of guppies. In that case, you can simply multiply the ratio—for instance, 5 males for 15 females and 10 males for 30 females Minimum is 2 females per male so that there's always 1 getting a break when big boy goes randy. Better is 3-4 per male - that should get the male tired enough to behave A single (1 to 1) guppy pair can be kept together but if you have to go community style then the ratio is 1 male to 3 females+, reason being males are very vigorous breeders and can hassle females so much that they become stressed which makes them more prone to sickness and already being pregnant would not be able to recuperate and can die/miscarriage May 3, 2006. #14. You'll want to get a couple more females, if you're going to keep the Platies. The ratio should be 2-3 females per male, to prevent undue stress on the female, from the male wanting to mate all the time. I'm glad to hear it seems to be working out though

when breeding guppies, you expect to get 50/50 male to female fry ratio. but often this is not the case....here are some ways you can influence the guppy fry.. Recently a Customer Asked What Affects Sex Ratio of Guppy and Endler Fry? In regard to what effects gender / sex ratio in guppies, this is a quite involved and multi-faceted question as well as there are many different opinions.Here is my information based on 50 + years experience of fish breeding and research on the topic.Both Environmental as well as genetic factors affect the ratio. Posted September 25, 2020. I know it's recommended to keep your female to male ratio when breeding guppies at 2:1. But I ended up keeping five females with one male, thinking it wouldn't be an issue, but now the male has now developed swimming issues which looks like swim bladder problems The secret to making your guppy fry male or female. Over the years I have kept guppies and I have always had more male guppy fry then female. I always wondered why this was because I knew others always had more females than males. Until I came up with the answer: the way to make more guppy fry male in to raise your ph, the way to get more. The male Fancy Guppy has a longer, thinner body than the female. Male Guppies are smaller than the female, measuring up to 1⅛ inch in length. Male Fancy Guppies are brightly colored to attract a mate

You should maintain a good male to female ratio in your tank. Ideally, you should keep 3 female guppies to 1 male guppy. This way, your male guppies will have enough females around to chase and mate. And at the same time, your female guppies will not get stressed and will get respite from continuous male attention It doesn't matter-- but give the female breeding guppies places to hide from the males. See the guppies I've most recently bred and resulting fry. This is.

What's The Best Guppy Male To Female Ratio In Aquarium

Guppies breeding behavior is characterized by a courtship period, which culminates with the male fertilizing the female. Usually, the male guppy displays his suitability by maintaining a courtship dance, called sigmoid display, in which the fish flexes into an S-shape and vibrates rapidly The ratio of male to female guppies in a fish tank should be 1:3. There should be 3 female guppies for every single male guppy. Do female guppies use the same sperms several times Number of fish: Generally, you will want to select one male and two or three female guppies for breeding. When there is a ratio of one to one, the male often becomes aggressive, chasing the female around the tank. With a one to three ratio, the male's attention is split between three females,.

How many male and female guppies can live together in a tank? Male guppies will continuously chase and try to impregnate female guppies. So, it is ideal to have more female guppies in the tank to avoid harassment by the males. A ratio of 1 male for 3 females is perfect. One male for two females will also work A good ratio to live by is 2:1, so two females to each male. Male guppies are the most colourful of the two sexes, and so many aquarists only keep males, so that their tank looks lively , without the risk of harassment and stressed fish Experts recommend at least a 1:2 male to female ratio for guppies because male guppies tend to harass females and chase them around too much if alone. If you decide to adhere to this rule, the best way to do this is to keep your guppies in threes. For example: 1 male and 2 or more females; 2 males and 4 or more females

In this study, the effect of temperature on survival and sex ratios of guppy Poecilia reticulata (Peters 1860) was investigated. Treatments of 19, 21 and 22.5°C low and 29, 32 and 35°C high. Adult female fancy guppies can produce from 30 to 50 babies in one batch. Make sure you choose a tank that has enough space for the fries to swim. A 10 to 20 gallons tank is enough for the babies. Fancy Guppy Breeding: Male to Female Ratio: Keep fancy guppies in a male to female ratio of 1:2. Pregnant Female Fancy Guppy The general ratio is one male per two female guppies. Avoid having more males than females because it would intensify their breeding. If you're not ready to take care of this problem, e.g., if you're not experienced, then adding guppies of the same gender in one fish tank could be the safest idea for a start Guppy enthusiasts remain divided as to the ideal female: male ratio. The textbook answer is two females to each male, but vast anecdotal evidence on the interwebs suggests that it really all comes down to the temperaments of the individual guppies Only breed male guppies to female mollies. The size of the fry will kill the female when she is giving birth, if the female is the guppy. Also, make sure that you have 1 male guppy to 4 female mollies ratio in your tank. And do not try to sell or give them away as a pure breed

Sexual harassment in guppies, or unwanted male attention, is a product of males attempting to mate as many times as possible due to the low energy cost of sperm production. In the study published. Male to female guppy ratio. So I've had two guppies die recently, one from dropsy, one from old age. But now the problem is that I've got 4 males and 3 females. And I also have a tank full of 4 month old guppy fry I've gotten from breeding, and I want to keep as many of those as possible Guppy Male to Female Ratio - What is The Best? Guppies are among the most popular type of fish kept by most beginners and experienced aquarists. They are considered as beginner fish, meaning a totally new beginner, with no idea on fish keeping can keep guppies without so much hustle To correctly identify the anal fin in male guppy fry, it's best if you wait 2-3 weeks, because at 1-2 weeks female and male guppy anal fins look exactly the same. Once the gonopodium appears, you'll be able to confirm without a shred of doubt the gender of the fry. When male guppies reach sexual maturity, you'll also notice them chasing.

Hi everybodyI am wondering if the gender ratio in endler fry can be influenced by the WP in any way. :confused:Asking Mr. Google you'll get all sorts of contradicting answers. :dejection:Most of the fry that my endlers had in the past few month turned out to be male and only very few are female.. guppy male and female ratio. Halloween Ten In The Bed, Examples Of Amoral Characters, Bully Stick Holder Amazon, Dewalt 3800 Psi Pressure Washer Pump Replacement, Best 12-volt Tire Air Compressor, Ceylon Biscuits Limited Vision And Mission, Leave a Reply Cancel reply

GUPPY – Saigon Aquarium

What Is The Best Guppy Male To Female Ratio? Don't Make

  1. Sex ratio of guppies, is also variable; a sex ratio of 1 male to 1.64 female had been observed in the wild whereas in captivity guppy showed a sex ratio of 1 male to 1.06 females (Klee~ 1963). Crossbreeding in guppies is very popular among the guppy culturists for developing numerous prize winning crossbreed strains
  2. However, female guppies can have other special reason for hiding. So, if you see a female guppy hiding, you might need to pay special attention. One of the major factors that can make female guppies hide is improper male to female ratio. Male guppies are aggressive when it comes to mating. They mate at any chance they get. The male guppies.
  3. Guppies are beautiful fish with interesting social behavior that tells a lot about their interactions, biology, and social status. You now know enough about their mating and reproductive behavior to act accordingly. To summarize: Keep a low male-to-female ratio, where you have one male for at least 3 females
  4. However, most beginners would probably not be able to do that and keeping 15 guppies in a small 10 gallon is going to be a recipe for disaster. I would recommend 8-10 guppies as a comfortable number of fish to have in a 10 gallon. Male to female ratio? I would recommend no more than 1 male to every 3 females in the tank

You can add as many as the tank can hold, but at minimum, we recommend 2 male guppies for every 1 female guppy. This will cut down on aggression and make them spawn more often. If you have more males, try to always keep the same ratio of 1 male to every 2 females, although it can go as high as 1 male for every 6 females if you choose Male guppies are more colorful than females and features long, flowy fins. Males can incessantly pursue females, thus stressing them out, therefore, females must always outnumber males in a tank. Another reason why you should focus on male to female ratio is because these fish are fast breeders and you may end up with a lot of fry in the tank In this study, the effect of temperature on survival and sex ratios of guppy Poecilia reticulata (Peters 1860) was investigated. Treatments of 19, 21 and 22.5°C low and 29, 32 and 35°C high water temperature were used on fry and gravid females for 11 days after parturitions and several days starting from the 16th day after first parturition until second parturition respectively A dominant female guppy may also harass another pregnant female. Also, if the tank is too small or there aren't enough hiding places, aggression levels among guppies will rise. Therefore, it's best to keep guppies in a 1:4 male-to-female ratio

guppy: male to female ratio

If you intend to breed guppies in a 5-gallon tank, then keep just 3 (2 females and 1 male) to start. This species has an innate ability to mate and reproduce rapidly. Each breeding cycle can yield anywhere from 20 to 50 fry! At this rate, your 5-gallon tank will be overcrowded in no time To prevent your female Guppies from dying due to being chased around, we recommend keeping a ratio of at least two females for every one male in your tank. That way, the male have multiple targets to pursue, which will give the other female some needed rest But Guppies and other livebearing fish have X, Y, and Z chromosomes that produce about 1/3 males and 2/3 female Guppies. So the normal ratio for Guppies is two females for each male, and this may be the reason that this ratio works better in aquariums too

A female guppy can grow as long as 6 cm whereas a male guppy will grow as long as 3 cm. Another physical difference between the two is that males tend to be slender while females tend to be rounder and boxier, especially when they get pregnant Why do male guppies have higher mortality and shorter life spans than female guppies? In part, this might reflect higher migration rates in males rather than higher mortality. There is some indication that male guppies are more likely to migrate out of a pool than are female guppies (Croft et al. 2003). Our sites are bounded by barrier. For guppies, a 10-gallon aquarium is suitable for keeping 7-10 guppies. Or, a 5-gallon tank for 3-4 guppies. Adding filtration and live plants allow you to add a few more fish but keep it to 1-inch fish per 1-gallon of water. Female and Male Guppies. A good female to male ratio can prevent conflicts within the tank

Guppies - Male to Female ratio? Guppy Forum 23352

The warm temperature of the water favours the growth of young male endler while cold-water temperature favours the growth of female endler. Hybridisation:- The Endler fish can mate with the guppies' species, i.e. P. reticulate , P. obscure guppy breed and the cross descendants will able to produce Here, we examine the differential effects of male versus female exposure to predation risk on courtship and mating behavior of males within pairs of guppies. Study species. Male guppies bear a series of orange, yellow, iridescent blue, and black spots, whereas females are drab (Endler, 1987). Males offer no resources other than sperm to their.

Guppy Ratio Male To Female Tropical Fish Forum

  1. The optimum ratio of Swordtails is three or four females for every male. However, Swordtails are not similar to other aquarium fish in terms of their size, breeding rate, and specific tank requirements. Hence, if you read on, I will guide you through the process of rearing a swordtail. Male and female swordtail anatom
  2. For every one male guppy, you should have three female guppies. While some go by the 1:2 ratio, this is by far the most popular method. If you want to increase the number of guppies in the tank, you can go simply multiply the ratio. For instance, for every 5 male guppies, there should be 15 females. And for every 10 male guppies, there should.
  3. Female chasing male guppy?? Jump to Latest Follow 1 - 3 of 3 Posts. M. mileshs95 · Registered. Joined Sep 24, 2011 · 99 Posts . Discussion Starter · #1 · Dec 4, 2011. Hello, my female guppy is chasing the male and nipping at his tail..
  4. In this experiment, female offspring production was found increased with decreasing temperature. As such the highest (66.67%) females were observed in control. Whereas the highest male (63.33%) were noticed in 300C treatment. Generally, sex ratio biased to female and male at high and low temperature treatments respectively
  5. The reason that you need to have this type of male to female ratio is that the male will chase the females all the time trying to impregnate them. The male guppies like to harass the females so that is why you need to have more females than males, specifically one male and two females
  6. I thought 2:1 female:male tended to be a pretty good ratio (I believe that's the ratio I used for guppies in the past, but it's been a while), but someone more experienced may have more insight there

How to control guppy fry gender? ways to influence males

  1. I added a few more female guppies to my tank after noticing her elevated stress levels. Things are much better now. I thought it would be wise to add them in a 1:1 ratio, so I now have the male to female ratio as 1:1.5. This is the only case where I'd say you can actually intervene to help lower stress levels (with the black eye symptom) in.
  2. This is very important, because male guppies chase female guppies all the time to reproduce. Female guppies can be exhausted in this process. So it is wise to choose a 1 to 3 ratio, one male to three females. This will give the females enough time to rest and recover. You can also setup a males-only or females-only guppy tank
  3. such. Females exhibit preference by roughly comparing an individual male to their sense of the average population (Houde, 1997). Thus preference is relative, not absolute, and is modeled as such. Monitored data include: Number of guppies in the population Sex ratio (F:M) of the guppy population Average number of tail-spots (of male guppies
  4. Male To Female Ratio. As I said, both species are prolific breeders, and that can lead to problems. Male Guppies will harass a female to try to mate with her, sometimes until she dies of exhaustion. And male Mollies are just as guilty of that behavior
Yellow Cap Imperial Guppy (Male) | RFIYellow Flame Guppy (Female) | RFI

Recently Customer Asked What Affects Sex Ratio of Guppy

Out of the three guppies, two should be females and one should be a male. Male guppies usually get very aggressive and constantly chase females when they get pregnant. That's why maintaining (2:1 / female : male) ratio is important to spread aggression of the male among the females so that only one female will not get harassed too much Guppies are not supposed to stay in a male-only tank as they're always looking to mate. The non-presence of females will prompt Guppies to attack each other for dominance and territory. Make sure you keep that ratio of 1 male to 2 female Guppies in your tank to lessen the stress and territorial attitude Can you mix male and female guppies? If you choose to keep both males and females, keep them at a ratio of 2:1.They can also be kept with other peaceful community fish such as Mollies, Platies, Gouramis, Corydoras, and peaceful tetras. Almost all livebearers such as ender's livebearers and swordtails can make ideal tank mates for them too.. Why do male guppies chasing pregnant female guppies Assorted Guppy Males (4 Pack) Appearance Male Guppies are smaller than Female Guppies but with larger flowing caudal or tail fins than the females. The males are also found with a variety of tail fin shapes and colors. The males like all live bearers have a long, thin anal fin or gonopodium which can be maneuvered in any direction

Guppy Breeding Ratios - General Discussion - C

The Secret To Making Your Guppy Fry Male Or Female

The best ratio of guppies that are kept in each aquarium is 1:2 males to females. This mix is very important. If you wish to keep a peaceful koi guppy aquarium, you have to keep one male to two female koi guppies. Female fish do not highly consider the territory like a male SKU 1816-3291 Categories Fancy Guppies, Miscellaneous Aquarium Fish Tag Poecilia reticulata. $ 6.99. Quantity. Bulk Purchase Pricing. 12 or more. $ 6.49 Per Item. Guppy - Fancy Female Assorted Live-bearer Guppy Aquarium Fish quantity. Add to cart. Description The ratio of male to female in Guppy Fry. Jump to Latest Follow 1 - 9 of 9 Posts. Inga · Registered. Joined Jun 8, 2010 · 2,023 Posts . Discussion Starter · #1 · Nov 21, 2010. This is all new to me as I never wanted to become a fish breeder but here it is.. In case, if you plan to keep the guppies in the ratio of one to one, then male guppy get tired and make assault running behind the only female. In the ratio of one is to three the male can mentally focus and divide between all the female guppies. This make easy for female guppies in breeding process

Male's guppies are smaller in size than the female's guppies. The average is between 0.6-1.4 inches for males and whereas for females it is around 1.2-2.4 inches. The guppies are fish that are sexually dimorphic this means it is easy to distinguish the males and females from each other The ratio of males and females guppies in your tank is a huge determiner of how stressed out your guppy population will be. This is because male guppies tend to push female guppies around, chasing them and trying to mate Normal male guppy fish are colorful than the female guppy fish. While the fish swim fins to extend the flap back & forth to attract the attention of female fish. Guppy fish are male sexual organs (gonopcdium) filed notice long out clearly. & males will try to swim, fish female band on a regular basis

Male and female guppies can also be kept together, only that you have to ensure that they are in the ratio of 2:1. Guppy Breeding Just so you know guppies don't need your help to breed and will reproduce like no man's business. The female guppy grows the baby guppy inside their bodies; what happens is that the growing fish uses the egg sac. The good ratio of the male and female is 1:2. One male for two female guppies. Let them in the same tank for 4—7 days for the breeding process. 5. Take the male from the tank. After the breeding process, you can take the male guppies and let the pregnant female guppies give birth in 21—31 days. 6. Separate the mother from the fry. After the. Guppies are usually seen in groups, and having at least 4 or 5 is recommended, as they do like to be around each other. Keep in mind that if you only want 2, you should only keep males. Any more than that, and you want to keep guppies at a ratio of 2 males to 1 female

Guppies are very easy to tell apart, male from female. As previously mentioned, the males are usually brighter in color and have a particularly large fin. However, other than the fin, males are actually smaller than females. Females often do have a very dark spot behind their main fin, called the gravid spot. This spot gets darker during. In general, guppy fish are peaceful and make good community fish. Male guppy can be aggressive towards each other and are constantly trying to mate, so a ratio of 2 to 3 females per male is advised to prevent excessive harassment of the females. Good tank mates include tetras, rasboras, danios, peaceful barbs and rainbowfish And best way to do this is to get your guppies from a good breeder rather than a pet store. And don't mind to a more for such breeding pairs because this will be the investment, which will pay you back. Make sure they all are healthy when you bring them. The male-female ratio should be 3:1 i.e. 3 females per 1 male. Buy 5-6 females and 3-4 males

Video: How To Identify Male Vs Female Guppies - Tankariu

Black Rainbow Guppy (Male) – Aquarium Fish For Sale

Can Male Guppies Live Together? (Crucial Things To Consider

  1. Female guppies give birth to live young , sometimes 30-50 of them at once. This occurs every 22-25 days. This occurs every 22-25 days. To prevent overpopulation of your aquarium, make sure female guppies outnumber male guppy fish
  2. Knowing how to identify male versus female guppies is the first step. Read on for more information on how to know if your guppy is pregnant, how to prepare for the birth, and how to care for the baby guppies. Guppy Biology. The average range of fry per birth is from 30 to 60
  3. Compatibility of Guppy Fish. You can keep 5-6 male Guppies together, and females too; but try to keep them separately, and maintain a ratio of 2:1 if you are keeping both the males and females together. While keeping two females, try to keep one male Guppy, and if you are housing two males then it can be kept with one female
  4. Guppies grow to an average of 2 inches long, so the smallest tank size we recommend is a 5-gallon aquarium for a trio of guppies. But given how quickly they reproduce, a 10- or 20-gallon aquarium would be more appropriate in the long run. If you plan on breeding them, start with a ratio of one male for every two to three females, and provide.
  5. The average brood for a female guppy ranges between 20 to 40 fry depending on the size of the female. Generally, the larger the female, the larger her brood. The world's record for fry born in a single brood is held by a guppy at the Chicago Shedd Aquarium, who gave birth to 244 fry in one litter, of which 238 survived (Hemdal, 2003)

How Many Male and Female Guppies is Best for Breeding

What is important is that you keep them in large numbers, if you have a big tank, or if you have a small one, it is recommended that you go and put at least 2 of each species. Fish get lonely too. It is recommended that you keep the 1:1 male to female ratio <Two or three females per male.> My husband is setting up a small guppy tank (6 gal) and wants to know the male/female ratio. Me, I want to know how many fish would be happy in that small of a tank. <For that tank, I'd say two females, one male, and some ghost shrimp to help out with tank janitor duty.> I really appreciate your prompt responses

One Male Guppy And Three Females Ratio? My Aquarium Clu

- Male-female ratio. Now if you wish to keep males females together, then you would have to follow the make-female ratio that is 3:1, three females per one male.This is because male guppies will always harass females for breeding finally stressing them out Manipulation of the operational sex ratio (OSR) in guppies, Poecilia reticulata, causes changes in male-male competition and female mate choice.In this study OSR is defined as the number of sexually active males divided by the total number of sexually active adults of both sexes Therefore, it s important to have more female guppies than male, so that attention is divided between females and to minimise harrassment the sea is a cruel world. A good ratio to live by is 2:1, so two females to each male The potential causes of adult sex ratio variation in guppies Poecilia reticulata were tested in lab-oratory experiments that evaluated the mortality rates of male and female P. reticulata exposed to potential predators (Hart's rivulus Rivulus hartii and freshwater prawns Macrobrachium crenu-latum) and to different resource levels

How to Identify Male and Female Guppies - wikiHo

  1. Poecilia reticulata belongs to the cyprinodont family Poeciliidae, the livebearers. The genus Poecilia contains 43 species (Parenti and Rauchenberger, 1989) distributed naturally in fresh, brackish, and salt water of the New World temperate and tropical zones (Meffe and Snelson, 1989).The guppy was first described as Poecilia reticulata fromspecimens collected in Venezuela by Wilhelm Peters in.
  2. This means that you could keep 3 guppies (one male, two females), 6 guppies (two males, four females), 9 guppies (three males, six females), and so on. You can find out why this is in our article on guppy male to female ratios. Once you've decided how many guppies you want, you can think about tank size
  3. Endler guppies are similar to guppies, but have a short double sword like structure. Because of this confusion it is better to place adult guppies in a competition. The dorsal of the sword tail guppies is very long measuring 7:1 (length :height ratio). The dorsal extends beyond the caudal peduncle of the fish
  4. Guppy female does mature when being approximately 3 months old, males use to mature a little sooner. The males will perform a courtship display in front of the female by spreading their fins and curving their body. Once the female is fertilized, it's going to take between 28 and 30 days until gestation period ends and the female gives birth
  5. This asymmetry can also explain the male guppy's apparent disregard of predation risk. Attention deficit/hyperactivity disorder has a 10 to 1 male to female ratio, language development disorders have a variable ratio of 2 to 4 males for 1 female, Tourette syndrome has a 6 to 1 male to female ratio, and intellectual disability has an.
Pintail Galaxy/tiger mix | Guppy, Guppy fish, Tropical

How To Keep Male And Female Guppies In The Same Tank

Getting the balance right between male and female Platys will make a huge difference to how happy and healthy your Platys' lives will be. The ideal ratio of male to female platy is 1 male Platy to either 2 or 3 female Platys. But 1 male to 3 females is probably best. The reason for this is that the Platy fish are prolific breeders Although secondary (birth) sex ratios in guppies (Poecilia reticulata) are typically 1:1, we recorded female-biased tertiary (adult) sex ratios in about half of our 48 samples and male-biased sex ratios in none of them. This pattern implies that some populations experience male-biased mortality, perhaps owing to variation in predation or.

Why Is My Female Guppy Attacking My Male Guppy

Female-on-female aggression. The researchers also tested the aggressive tendencies of the guppies in all-female or in mixed-sex groups in the presence of a harassing male.By adding a food patch to. This is very important, because male guppies always chase female guppies to reproduce. Female guppy can get tired in the process. So 1 to 3 ratio, it would be wise to have a man and three women. This will give women enough time to rest and recover. You can only setup male or female guppy tank. This is how you can avoid the hassle of excess. In addition, compared to Fancy guppies, Endler's males rarely display jumps and chasing behavior (a mating behavior) because females leave promptly if uninterested in the male's advances. Endler's male will attempt to become visible to the female in the face-to-face position. Next, he turns both sides to the female, like the common guppy If you want babies, put a ratio of 1 male to every 2 or 3 females. That way the male will not harras the other female guppies. The male has a modified gonopodium which he fertilizes the females eggs with. They will hatch inside of her and be born fully formed! They have a much better chance of survival in the community tank because they are.

how to breed guppy fish 2019 Unveiled the effective secret20 Best Guppy Fish Tank Mates (With Pictures)

Male guppies are more 466 sensitive to high temperatures than females (Gibson that the opportunity for sexual selection increased as the 1954), which most likely causes high male mortality at sex ratio became biased towards males. She attributed this this site Endless Endlers, Round Tail Guppies, Scuds, Live Plants, Naja and More!!! Guppies. ALL Prices Include USPS 2-3 Day Priority Mail Shipping within Continental US $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ Search Livefins.com. Search Recently Customer Asked What Affects Sex Ratio of Guppy and Endler Fry?. The female is a dull green /brown, much larger than the male, up to 2 ½ inches. The female guppy is capable of having a brood every 4 weeks and once impregnated she can have 5 or more broods without benefit of a male again. The young can reach sexual maturity in a well-fed pond in 5 to 6 weeks and give birth by the 9 th week of life How many male guppies can a female have? The exact number or the exact ratio is a 1:2 male to female guppy. In simpler words, if you are keeping one male guppy in your tank, then you should have two female guppies for him so his attention is divided between the two Carotenoid-based colour spots are used by female guppies to assess male attractiveness and are thought to signal resistance to oxidative stress in sperm . Accordingly, males with bright carotenoid-based coloration should be better equipped to protect their sperm from oxidative stress, and hence from the deleterious effect of sperm ageing, than. Meanwhile, female Guppies possess a more subdued coloration. In the wild, they are usually only grey or silver in color. Their tail fins are also the same color, and are noticeably shorter than the males'. Female Guppies are much larger in body size, however, growing up to double the size of male Guppies