Tetras

[sunpirate2u]

I have a ten gallon tank with 4 x-ray tetras. I was wondering, how to tell a boy from a girl.

 

[Feral123]

idk if its the same for tetras but look at the anal fin on your fish. now im no expert but if the anal fin is wider then itll be a female and if its smaller then a male.

 

[sunpirate2u]

I always wanted to know!