thanks everyone. i have like two or thre of those t-rex's in my tanks.lol. i have 5 juvies and i was thinking male too. there is one that i couldnt get a pic of and that one im leaning towards female. no definate black on dorsal yet but spangles are leaving tail and dorsal. but that was had popeye its healing still, but it lost eyesight on right side. im really hoping to get at least 2 females.