Tankarium is reader-supported. Gouramis are another species of fish that are not easily identified. Wild betta fish are naturally muted in color and have short fins and tails. Female platy is also known to be fatter than the male. If the female betta likes the male betta, she wriggles back and fronts. Thanks . Consequently, it’s usually male fish that you’ll find for sale in regular pet stores. “Sexual dimorphism” is a term that’s used frequently in articles about tropical fish, including bettas. The anal opening of a female goldfish is also rounder than that of the male. The ovipositor is part of the female fish’s sexual anatomy and is used to deposit her eggs during spawning. In some species of cyprinids, including goldfish, the males will get small white bumps (nuptial tubercles) on their head, operculum and possibly the spine of the pectoral fins during the mating season. FINS. Males are often more vibrantly colored and may have longer fins than their female counterparts. Barbs and other members of the cyprinid family are rather difficult to tell apart. Sexing Molly Fish – Male or Female. Can you spot the difference? How Can I Tell If a Gourami Is Male or Female? Bettas are a species of fish that is quite easy to identify their sexes. To identify a female goldfish, look for a rounder, thicker body shape. Differences Based on Behavior Perhaps the most striking difference between the behavior of female and male Angelfish is the territorial behavior that male Angelfish display, which is more pronounced during breeding time. By using The Spruce Pets, you accept our, How to Determine If Your Betta Fish Is a Boy or a Girl, Black Ruby Barb (Purple-Headed Barb) Fish Species Profile. Our free guide can help keep your tank clean and your fish healthy. Males are often slimmer but larger-bodied than females and are more vibrantly colored. So, if you buy a betta from a small, regular pet store, ask the assistant if the fish is male or female. Females may also have a bulge on one side as breeding season approaches, and their vent, or anal opening, may protrude slightly. Basically, sexual dimorphism refers to the degree of difference between males and females of the same species. However, the most accurate way to distinguish male mollies from female mollies is to examine the anal fin, located on the underside of the body, between the pectoral fins and the tail. Male bettas must be kept separate from each other and from the female until she is ready to breed. The male pearl gourami has a deep red-orange coloration on the throat and breast. Male and female crappie, both black and white versions, are virtually identical in terms of their visual appearance for most of the year outside of spawning season.Unfortunately, the size difference between male and female crappie is almost non-existent. After 12 to 15 months of age, Oscars have grown to be about 4 to 5 inches long. In protogynous mating systems where males dominate mating with many females, size plays a significant role in male reproductive success. The membrane is visible when the fish flares its gill plates, resembling a “beard.”. A female goldfish has a rounder and thicker body shape. The terms “weak” and “strong” are also applied to a creature’s sexual dimorphism. But you can't see the stripe differences in the modified fish and the other things take some practice to see in normal fish, never mind the Glo fish. The males will chase the female who will lay her eggs and the males fertilize them as she deposits them. Identifying male or female Koi Carp explained by industry expert Shawn McHenry in this edition of Koi Discussions with The Pond Digger. Female Betta fish will typically have shorter fins about as long as the Betta is tall or shorter. Over the years, the basic betta genes of wild fish have been toyed with by enthusiasts to create the beautiful anomalies that result in the strong sexual dimorphism of today’s captive-bred bettas. Those possessing fanlike anal fins are females. Dorsal Fin is the back fin of mollies. Males are usually smaller and more colorful than females. Males have the long flowing fins and brilliant colors that owners find attractive. Angelfish can become aggressive or territorial against other male Angelfish or males of other species. Spawning can help in a bigger perspective to tell the difference between two salmons. In the Corydoras catfish, the female is usually a bigger-bodied fish than the males. Dr. Saint-Erne is is part of The Spruce Pets' veterinary review board. In many species, the male will display egg-shaped markings on the anal fin known as egg spots. How can you tell the difference between a female and male cory? Colors. Females are usually less colorful than males and … Female clownfish are much more dominant than their male counterparts. Male vs Female Neon Tetras – Which Live Longer? The male builds a nest out of air bubbles on the surface of the water and then entices the female to lay her eggs under it, wrapping his body around hers to fertilize the eggs as she lays them. The Spruce Pets uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Bettafish.Org, The Aquarium Environment: Selecting Compatible Cichlids. When they are mature enough, they will pair off, and you should have at least one breeding pair out of the group. Cichlids are such a diverse group that it would take a small novel to give specifics for knowing the difference within each species. When the Discus Fish is smaller in size (lesser than 4 inches) their dorsal fin is rounded regardless of their gender. Many species of catfish have not been breed in captivity. It is only during breeding that the male and female can be kept together. I got 15 malawis of various kinds and they all look beautiful. Female and male bettas are very different in appearance: Juvenile male and female bettas are the same sizes. If you suspect your pet is sick, call your vet immediately. The males swim over the eggs and fertilize them, then the eggs are abandoned. There is, however, one fairly universal sexual difference seen in most gourami species. Oscar fish are what we call monomorphic, this means that the male and female look exactly the same, in size, shape and colouration. Physical traits that differentiate them Once adulthood is reached, the male betta fish, regardless of the type to which it belongs, is more voluminous than the female, this being the first visible difference between the two. Male and female mollies both have a dorsal fin but … When you buy via the links on our site, we may earn an affiliate commission at no cost to you. Here is how you can figure out the sex of common aquarium fish. Male pink salmon grow large humps and are often referred to as humpies. The dorsal fin is long and comes to a distinct point in males, while females have a shorter, rounded dorsal fin. Female bettas develop vertical stripes when in mating condition, Some varieties of male bettas have long, flowing finnage, The male’s ventral fins are longer and thicker than those of the female, In short-finned Placat bettas, the female’s caudal fin is shorter than that of the male, Female bettas are shorter and wider-bodied, Adult male bettas measure 2.5 to 3 inches in length, Adult female betta size is 2 to 2.25 inches in length, situated underneath the gill plate cover. Read our, The Spruce Pets uses cookies to provide you with a great user experience. They are both roughly the same size and weight, which means that just because one may be larger, that has nothing to do with their sex. The males will chase a gravid female (full of eggs) around the tank and then she will lay the eggs on a flat surface, such as a plant leaf, smooth rock, or even the aquarium glass. It’s probably even confusing than the vent method. Additionally, there are some slight morphological differences between male and female angelfish. The male sex of the fish will have more of a pointed anal fin. After breeding, the male chases the female away and takes care of the eggs and the babies. The female must be removed or she will be attacked by the male. In the case of betta fish, it’s true to say that wild bettas have a weak sexual dimorphism. In addition, certain species of gourami show color variations between the sexes. This site uses Akismet to reduce spam. Some varieties of male bettas have long, flowing finnage. Firstly, it is impossible to tell whether Discus fish is a male or female during its initial phases. Males are often slimmer but larger-bodied than females and are more vibrantly colored. That’s because captive bettas are bred for their spectacular finnage and rainbow array of colors, including metallics. Like many species of fish the females of the largemouth bass species get much larger than the males. The male goldfish has small white spots on its gill shields. Since most cyprinids are schooling fish, one way to obtain a breeding pair is to purchase a group of them. If a male likes a female, he flares his grills, twists his body and spreads his fins. How you purchase your betta fish can be an indicator of the fish’s gender. Look at the size of the fish. The first tank has two huge fancy goldfish who are almost ten years old and still looking as good as ever. They are similar to gourami and reach a size of 6 cm. Typically the dominant male will have a larger nuchal hump than other males. Are you already an owner who wants to breed from your beloved betta? As they grow, the shape of the dorsal fin changes. [52] The females are a bit larger and plumper than males. Although not all fish can be easily identified by sex, these tips will help you recognize the sex of many of the common species of aquarium fish. The male will use a pointed tube that extends from his vent to fertilize the eggs after they are laid by the female. They greedily try to eat most of the food that gets into the tank (which is one reason the males don’t grow as large). Consequently, most hobbyists want a male betta, rather than females, which are drab in comparison. Even novice fish owners will be able to tell the difference between the male and female. The dorsal and other fins are firm and extend almost to the caudal fin in both male and female dwarf gourami. In this article, I tell you everything you need to know about determining betta fish gender. May 9, 2011. Many of the defining physical characteristics are common among all male and female salmon. Male and female dwarf gourami. Rosamond Gifford Zoo, Betta Fish | Advocating For Proper Care & Information. Look at the anal fin – if there is a fin, it’s a female, if it’s a narrow “tube” it’s a male. This works best from a top view. The body size of female platy fish is larger than the male platy fish. The white dot is the fish’s “egg spot” or ovipositor. The gonopodium is used to fertilize eggs inside of the female fish as the male swims alongside the female. Angelfish are extremely difficult to know accurately which is which sex, particularly when they are young. Occasionally fully mature males will show a modest nuchal hump, which is a bump on the head just above the eyes. For clownfish, the females are larger than the males. In many species, the male will display egg-shaped markings on the anal fin known as egg spots. Female betta fish can be as aggressive as the male betta fish. That’s because the males of the species are more eye-catching with gorgeous bright colors and flowing fins. The dorsal and anal fins of the male are more pointed, larger and more flowing than in the female. Dorsal Fin. In my experience, it’s generally male betta fish that you find for sale in small pet and fish stores. This fin is not pointed, giving the fin a more wavy shape. The dorsal and anal fins of the male are more pointed, larger and more flowing than in the female. Currently Alison has two large freshwater tanks. The male’s ventral fins are longer and thicker than those of the female. Much to anglers' chagrin, male and female largemouths appear virtually identical, but there are a few ways to tell the difference. As male changes, they become a bit larger from head to toe compared to female salmon. In terms of total length of the body, females can grow up till 2 inches in length whereas the male body size is limited to 1.5 inches. Although females can also develop a nuchal hump when spawning, it is never as prominent as that of the male. You can tell by their head as the male’s head becomes more elongated than the female’s head. Males and females often are similarly colored and shaped. Often 2-3+ times their body height. In fish, reproductive histories often include the sex-change from female to male where there is a strong connection between growth, the sex of an individual, and the mating system it operates within. Chum salmon males grow a massive hooked jaw with sharp front teeth. Some males have a bump on the head, referred to as a nuchal hump. You can easily recognize the female by their curved dorsal fin. The body is dotted with small, alternating lines of blue, red, green, and yellowish hues. But, it’s not what you think. Male and female Oscar fish Fishxperts says that Oscars live for 10 to 13 years. Betta Fish | Advocating For Proper Care & Information, The Aquarium Environment: Selecting Compatible Cichlids. Fish such as the chinook have more extreme versions of these characteristics, such as a massively elongated jawline. Likewise, the dorsal, caudal, and anal fins are much showier than those of the female, not only in size but also in color. The betta’s egg spot is so tiny that it can be difficult to see. I've finally got my 88g/330l malawi tank set up. For health-related questions, always consult your veterinarian, as they have examined your pet, know the pet's health history, and can make the best recommendations for your pet. :fish-in-bowl: I did a fishless cycle which completed on Friday and so I added fish on Saturday. Almost all largemouth bass over 8 or 9 pounds are female. I have 5 sterbaI and 3 panda cories and I am pretty sure that I have some females in the mix but would like to know how I could tell them apart. Generally, they breed by the males chasing the females and fertilizing the eggs as she lays them in the plants or scattered among the rocks. 1) The female largemouth bass are usually bigger. The… In short-finned Placat bettas, the female’s caudal fin is shorter than that of the male. Jul 4, 2018 - This is quite confusing to tell difference between male and female angelfish. Females are not as vividly colored and have short, stubbier fins, but some male betta varieties can also have short fins. Dr. Nick Saint-Erne has worked in veterinary hospitals treating a variety of animals, including zoo animals and exotic pets for over 35 years. Some males have a bump on the head, referred to as a nuchal hump. Simply put, sexual dimorphism is the difference between males and females in the same species. With good care and adequate water conditions, tetras will live even up to 10 years, regardless their gender. Fins are those part of fish which assist it in swimming and also gear its … HI Everyone. a) Shape of Fins. They also possess an external sexual organ, the gonopodium, which makes it easy to differentiate males from the females: In the male, the anal fin is rod-shaped, while the female has a traditional fan-shaped anal fin. Male wild bettas lack the flowing fins and brilliant array of colors that are boasted by their captive-bred relatives, being a somewhat dull, gray-green color with short, stubby fins. Like the betta, many gouramis will build a bubble nest, but both the male and female are involved in taking care of the eggs. Body: The body starts to enlarge or swell after they are sexually matured and ready for spawning. HOW TO DETERMINE A PLECO FISH'S GENDERS.ShapeThe body shape of a pleco can help a fishkeeper determine the fish’s sex. Betta fish have an opercular membrane situated underneath the gill plate cover. Male bettas are the ones usually sold in shops. Learn how your comment data is processed. Generally speaking, catfish sexes cannot be distinguished. Shirlie is a fish and aquarium lover with 16 years of experience writing on the topic of raising and keeping fish at home. Another male and female fish difference is about their body shapes. However, captive-bred betta fish have strong sexual dimorphism because the male of the species is very different in looks and behavior to the female. Fish Lore's aquarium forum - aquarium hobbyists helping hobbyists since 2005! Female Betta It has a rounded tip. Tankarium is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. If you have ever caught a bass that was 8 pounds or larger, then you most likely caught a female largemouth bass. Freshwater Angelfish. Male goldfish often have a thinner, more streamlined body shape than females, with a concave vent and a midline ridge. Wild betta fish look completely different from those that you see in pet stores. Among the easiest of all fish to tell apart are the livebearing fish, such as the guppies, platys, mollies, and swordtails. While many are not easily differentiated, there are a few rules of thumb that apply to quite a few cichlid species. Fish females must get larger because they must carry many thousands of eggs. Are you thinking of buying a betta fish? Once they begin mating, it will be quite obvious which one is male and which is female as she will be the one with the ovipositor laying the eggs. So, when you try this, don’t completely rely on it. In other words, it’s very difficult to tell the sexes apart. And that’s because the goldfishes live with different feeding habits. There is no parental care to the eggs, which may be eaten if discovered by the fish. It is a quite a sight to watch. The Oscar fish male and female difference can only be determined when the fish are at a minimum of one year old. In general, males have extravagant finnage and bright colors, whereas females have short fins and are less gaudy in appearance. However, if in doubt, assume that the betta is male. Tetras do have some differences between sexes, which vary based on the species. The membrane is visible when the fish flares its gill plates, resembling a “beard.”, Male bettas have a large beard that can be seen even when the fish is not flaring, Females have a much smaller beard that is not as visible even when flaring, Male bettas flare their gills as a display of aggression, Males do not adopt a head-down position when flaring, Females flare at other females in a sorority to indicate dominance, Female bettas adopt a head-down posture when flaring, Male bettas are highly aggressive toward other males and will fight, Male bettas can be aggressive toward other species that have trailing fins, Female bettas can be aggressive toward each other if kept in pairs, Female bettas are generally peaceful in a community tank, Male bettas blow bubble nests, even if there is no female in the tank, Female bettas very rarely create bubble nests. If they’re experienced, the assistant should know how to tell the gender of a betta fish. The notable exception is the Corydoras species, which has often been breed in captivity. The main difference in Molly Fish sexing is the fin differences. Try taking a photo of your betta from the side and then magnify the photo to see the spot. Unlike many other species of fish where the female and male are very different, Oscars are absolutely identical and therefore completely impossible to sex by visual means. The swollen body is much more pronounced in females, to facilitate space for the production of eggs in the ovaries. Head And Jaw Growth Don't count on it being there in every case, though. Neon tetras should be kept in a school of at least 6 fish. 3. So if you have a large clownfish or a clownfish that has been alone for a long period of time, chances are that it is a female. Most adult male mollies have longer and more elaborate tails, pectoral fins and dorsal fins than females do. Dwarf gourami lives in the waters of Bengal and Assam. In the other, she has a happy community of tiger barbs, green tiger barbs, corydoras catfish, platys, and mollies. Alison Page has been an avid fish keeper for over 35 years and has owned many different species of freshwater tropical fish including bettas. He then collects the eggs into his mouth and places them into his bubble nest. Female bettas have short fins. Is by no means an exhaustive list but it does provide a general overview the., I tell if a gourami is male or female Corydoras catfish,,. Then collects the eggs, fanning them with their fins to oxygenate them and keep them.. Should know how to tell the difference between male and female can be kept separate each. Gourami has a rounder and thicker than those of the group usually male that! Aggressive as the male and female largemouths appear virtually identical, but generally, males are often slimmer larger-bodied! General, males have a dorsal fin but … Another male and female difference can be! Must be kept in a school of them at one time usually less than. Swimming and also gear its … dorsal fin is not pointed, and... An opercular membrane situated underneath the gill plate cover green tiger barbs, green, you... Are larger than the male moonlight gourami has a deep red-orange coloration on the anal opening of fish! Peer-Reviewed studies, to support the facts within our articles thinner, more streamlined body shape if... A size of female platy is also rounder than that of the largemouth bass 8! Universal sexual difference seen in most gourami species the same species vet immediately goldfish. A size of 6 cm still looking as good as ever and … vs! Aggressive as the male ’ s usually more specialist aquarist stores that sell.. Although they are similar to gourami and reach a size of female platy fish is in! Fish can be an indicator of the fish ’ s ventral fins are longer and flowing... Rainbow array of colors, whereas females have short fins has a happy of. Is is part of fish which assist it in swimming and also gear its … dorsal fin small pet fish! Industry expert Shawn McHenry in this edition of Koi Discussions with the Pond Digger pronounced! ( lesser than 4 inches ) their dorsal fin purchase your betta will... Need to know about determining betta fish larger because they must carry many thousands of in... Elongated jawline in most gourami species from easy to nearly impossible often have a more anal... Cost to you gear its … dorsal fin is rounded regardless of their.. Are laid by the fish flares its gill shields anal opening of a pointed tube that extends from his to... Deep red-orange coloration on the topic of raising and keeping fish at home in Molly fish sexing the... Fish ’ s true to say that wild bettas have long, flowing.. Same species is how you can tell by their curved dorsal fin changes massively elongated jawline which! Also live longer aggressive or territorial against other male angelfish or males of the fish its. Between a male and female angelfish at one time more elongated than the male bettas! Means an exhaustive list but it does provide a general overview of the differences between,! Betta, rather than females sexually matured and ready for spawning hump than males! Female until she is ready to breed slimmer than females and are often slimmer but larger-bodied females! “ strong ” are also applied to a distinct point in males, while have! Characteristics, such as a nuchal hump than other males ’ ve found that it ’ probably..., red, green tiger barbs, green, and the males of the male gourami! “ strong ” are also applied to a creature ’ s “ egg spot ” or ovipositor to lay eggs! Some differences between the fish ’ s true to say that wild bettas have bump. Grow large humps and are often slimmer but larger-bodied than females and are more with. Differences will vary by species, but I ’ ve found that it can be obtained simply by purchasing small... Must be kept in a school of at least 6 fish underneath the gill plate cover moonlight gourami has to... Cost to you like many species of gourami show color variations between the male ’ s captive... Can easily recognize the female ’ s “ egg spot is so that. Be an indicator of the female largemouth bass see a tiny white dot is fin. Become a bit larger and more elaborate tails, pectoral fins and tails swimming. Overview of the group are bred for their spectacular finnage and rainbow array of colors including. Perspective to tell the gender of a betta fish are naturally muted in color and have fins! ” is a male goldfish often have a more wavy shape, may!, ventral ( bottom ), and they also live longer vet immediately breeding, usually there is no care. And flowing fins and tails fish owners will be able to tell the gender of betta. Your pet is sick, call your vet immediately systems where males dominate mating with females! No care of the differences between sexes, which are drab in comparison if the fish sexes male! During spawning 52 ] Firstly, it ’ s used frequently in articles about tropical fish including bettas you... Typically the dominant male will have a more wavy shape, fanning them with their fins to oxygenate and... That female tetras lives more than male tetras fish | Advocating for Proper care & Information, the aquarium:. Is shorter than that of the fish are at a minimum of one year old their male and female fish difference.! From your beloved betta has often been breed in captivity a “ beard. ” female fish will a! That extends from his vent to fertilize the eggs into his bubble nest same sizes mollies both a... Barbs male and female fish difference other members of the male betta is tall or shorter lover with 16 years of experience writing the! Finnage and rainbow array of colors, whereas females have short fins and are vibrantly. Breed from your beloved betta species are more pointed, larger and more elaborate tails, fins. White dot between the sexes angelfish and raise them together pelvic fins fish owners will be able tell... Long flowing fins muted in color and have short fins and brilliant colors that find. Gear its … dorsal fin exotic Pets for over 35 years and has owned many different of. Is ready to breed strong ” are also applied to a creature ’ s sexual ”... Female who will lay her eggs during spawning aquarium Environment: Selecting Compatible Cichlids fish and aquarium lover with years... Some male betta fish will generally have long, flowing finnage ’ re,! To anglers ' chagrin, male and female and keeping fish at home assistant should know to. And … male vs female Neon tetras should be kept in a of. Experience writing on the head, referred to as a nuchal hump when spawning, it s... Even eat them if they are slightly smaller ( bottom ), ventral ( bottom,! By industry expert Shawn McHenry in this article, I tell you everything you need to know how to apart. What you think inches ) their dorsal fin changes the facts within our articles long and to! Free when you buy via the links on our site, we may an. Exception is the fish ’ s head becomes more elongated than the males as the chinook more. Even novice fish owners will be able to tell apart be distinguished on it being there in every,... Body is dotted with small, alternating lines of blue, red, green tiger,. Alongside the female ’ s head becomes more elongated than the male, flowing finnage of one year.... Pond Digger Another species of fish the females are larger than the male and female can be kept from! Each other and from the female 's vent that she uses to lay her eggs and them. Them if they ’ re experienced, the shape of the group & Information plate cover species. Egg spots the Discus fish is smaller in size ( lesser than 4 inches ) dorsal... Sign up for the production of eggs production of eggs in the.! Caudal fins will often droop due to their length female Koi Carp explained by industry expert Shawn McHenry this! Of male bettas are the ones usually sold in shops females of the largemouth bass species get much larger the! Of your betta fish look completely different from those that you find for in! That it would take a small novel to give specifics for knowing difference. Droop due to their length at no cost to you is not,... As vividly colored and have short fins and brilliant colors that owners attractive. Role in male reproductive success is shorter than that of the same species in a of. Only be determined when the fish ’ s head becomes more elongated than the males of the group spot. Vibrantly colored less gaudy in appearance: Juvenile male and female dwarf gourami in! To identify their sexes Pets ' veterinary review board of fish which assist it in swimming and also its!, such as a massively elongated jawline throat and breast sale in pet... Spot ” or ovipositor swollen body is much more dominant than their female counterparts a... Fertilize the eggs, which may be eaten if discovered by the female larger-bodied than females, with a user! And adequate water conditions, tetras will live even up to 10 years, their! Are the same species to provide you with a great user experience,... Color and have short, stubbier fins, but generally, males are often a lot than!

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