Dont give up hope mate i have a group of 6 that i got i.ded as all males less than 6months ago and now they are pumping out fry. It just goes to show how hard they are to sex.
Hi JK, The first 3 are about 7-8cm. They were the best photos I could get off my mobile. I do have this one of the 3 of them but it is even worse im affraid.