i'm fairly confident it is female, but the patterens are throwing me off, the ones in the front are distinted patterns but as you go twords the rear end, they start to fade out. i believe that this is mainly because of the way it was treated befroe you got it. and that it was recently put in the new aquaria, after a couple weeks it should have more distinted patterns throughout it's body, and will be eaier to sex.