The tank looks good, but I would get rid of atleast the 3 stripe and fore sure the tang. I had a 3 stripe that killed a dog face puffer a panther grouper, and would even fight my clown trigger. Mind you all the fish it killed and fought with were 5 times his size. There a pain to get out of a tank. As for the tang your gonna catch alot of slack here for having a tang in that small of a tank.