Randy Fish Question

[fishcake_random]

one of my black sailfin mollies and my white mollies are getting it on i think. they keep following each other around and then they rubbed there back ends together. is this how they do it? one was at a sort of angle like a y sort of shape. can these two breed together??? or am i just getting excited over nothing?

regards
fishcake.

 

[mlawson]

If one has a modified pelvic fin on the underside (called a gonopodium) then that is the male.
If this is moved to the female then they are attempting to breed.
It is possible to cross-breed molly species.

Cheers,

Mike