Do you need male fish to fertilize eggs?

In the vast majority of fish species, yes, you need male fish to fertilize eggs.

Fish reproduction typically involves external fertilization, where the male releases sperm into the water and the female releases eggs. The sperm then fertilizes the eggs externally.

However, there are a few exceptions to this rule.

- Some fish species are hermaphrodites, possessing both male and female reproductive organs. These fish can self-fertilize their eggs without the need for a separate male.

- Other fish species practice parthenogenesis, a form of asexual reproduction where females can produce offspring without fertilization from males. This is rare but occurs in some fish species like the Amazon molly fish.