How do I tell if a fish is a female or male?

Answer Size and ColorFemale fish tend to be larger and less flashy than their male counterparts. For example, guppy males are often brightly colored, have long fins and small bodies, while a guppy female ... Read More »

Top Q&A For: How do I tell if a fish is a female or male

How Do You Tell If a Fish Is Male or Female?

Most hobbyists, whether because they plan to breed their fish or because they simply like to know, want to be able to tell whether their fish are male or female at some point. Determining the gende... Read More »

How do i tell if my oscar fish is male or female?

Oscars (Astronotus ocellatus) are popular aquarium fish because of their large size and vibrant colors. These aggressive cichlids are "monomorphic," meaning males and females look exactly alike in ... Read More »

How do I tell the difference between male& female fish?

Determining the Sex of Monomorphic FishDetermine the sex of a monomorphic fish like a cichlid, a fish that looks the same when male or female, by first finding the vent of the fish. The vent is loc... Read More »

How do I tell if a gold fish is male or female in a picture?

Goldfish pictures often do not have enough detail, nor are they taken at the proper angle to tell if the gold fish is male or female. However, if the picture provides a detailed, proper angle of th... Read More »