How Do U Find Out If The Australian RainbowFish Is Male Or Female?

Question

I Want to Breed "Them To Any Suggestions.

Answer 1

The fish are quite easy to sex by the following method when young and showing no obvious colour and shape differences. Look at the fish from the side when the two dorsals are laid flat along its back, if the first dorsal touches or overlaps the second dorsal, the fish will almost certainly be male, the females first dorsal will not touch the second dorsal. Once you have looked at a few you will see how easy it is to tell. Just occasionally you will get a late developing male, but on the whole this method is very relilable.

Answer 2

females have yellow tails, males have red tails