The life of the fish will depend on the variety selected by the owner and it will also depend on the facts of the fish. The female Flowerhorn fish will be dedicated to taking care of her offspring of any intruder that is approaching even it is said of cases in which the female comes to kill the male. That’s because Flower horn fish have never lived outside of captivity. It takes up to 8 months for a male flowerhorn to be sexually mature. Compare the hump sizes of each Flowerhorn fish. Identify the shape of the anal pore on each Flowerhorn fish. Compare the hump sizes of each Flowerhorn fish. Male and female fishes may have a difference in the age to live in the tank so all these factors are always important when you want to know about the life cycle of your fish. How to Know Male or Female Flowerhorn Fish If you want to tell the difference between a male and a female Flower horn fish, you won’t have to look any further than inside your fish tank. Gently squeezing the abdominal region may reveal the papillae..Male Flowerhorns will have broader body with higher dorsal, anal and caudal fins. 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. 4 Pay close attention to the actions of each fish during the breeding process. A female's will be shaped like a "U," while a male's will be shaped like a "V". Since not every male flowerhorn is fertile, finding a best or perfect fertile flowerhorn is time consuming. 4 The Flowerhorn fish is known for its large hump on the top of its head, and as the fish become adults, the male will grow a larger hump than the female. A female's will be shaped like a "U," while a male's will be shaped like a "V." 3. They are a hybrid fish, created through breeding techniques over the years. Types of Flowerhorn … The same pattern does exist on some male Flowerhorns..Observations on the shape of the genital papillae. On the other hand, the male will be even more aggressive and will take care of an area delimited by the couple. It is for hobbyist to wait until they reach their puberty before they can conduct a gender test. Male and female flowerhorn fish look almost exactly the same when they are young. The Flowerhorn fish is known for its large hump on the top of its head, and as the fish become adults, the male will grow a larger hump than the female. The Flowerhorn fish is known for its large hump on the top of its head, and as the fish become adults, the male will grow a larger hump than the female. That is, hobbyists have to wait until the fish is sexually mature and then pair the male with a female to see if the male is fertile. Most adult male mollies have longer and more elaborate tails, pectoral fins and dorsal fins than females do. V-shaped papilla indicates a male fish, while a U-shaped papilla indicates a female fish. After your flowerhorn fish (or before you begin your breeding procedure) reached at least 4-5 inches in size, you can try to identify their sexuality.