How big is this fish?
Going by your first sentence here, I'd agree with Joe and say male.grigas9 said:when I bought him he was in a tank with about 20 other champs and I was sure he was a male because he was showing pretty decent blue in his/her face but now it seems to be gone and I am not sure again
it may just be because he/she is in a mixed tank and not the most dominate - time will tell I guess