all except the FH are in the same tank. Currently a 125. The ones pictured are the laid back fish in the tank. They don't put up with crap but they don't start it either. The male festae and my hybrid tex/FH are the two instigators in that tank. I would say the FH is about 8" while the Midas is about 6.5", the female festae is about 5" and the umbee is only about 4". The FH would probably be the boss of the tank but I don't think I'm gonna try and put him with other fish. He has a hard enough time not killing the female he has breed with. Thanks for the compliments too. The FH was my smallest fish a long time ago but he is growing like a champ. Feel free to correct any of my guesses levi.