Hi. It's been a while... Last year I wasn't certain about my Jag's gender. Now the problem has returned. The pattern tells me that it's a male (the size too - he hasn't got yet 1 year and a half and he's alreay 12"). He's very gentle with the other fish and never bothers someone else (until someone bothers him, of course). Maybe I'm not that good at sexing Jags. Waiting for answers. Here's the link with the first pictures (some year ago) and the last ones. Thanks in advance. 
http://www.monsterfishkeepers.com/forums/showthread.php?t=154894
http://www.monsterfishkeepers.com/forums/showthread.php?t=154894
