Description : How do I tell if a beta fish is male or female?
Last Answer : answer:If it's a big-finned, flashy kinda fish that looks like this (but could be some other color, too, like red or almost purple), it's a boy. If it's a small-finned, less vivid color that looks ... lonely, in those little cups of water. You sort of have to go out of your way to buy a female.