thanks guys, tank is 8 x 4 x 30" high (600 gallons)
i tried to take some better pics today, about the 10 month mark tank has been set up
argentea male, still the boss of the tank although he gets chased away from the red devil/xilo area when he ventures there
his female, they are not really a pair though, no spawning or hanging out or anything lol
my favorite fish and fastest grower, trimac, he's mellowed out but still aggressive especially during feeding time
black belt and heterospilia i think squaring off, they pretty much posture but never really fight like most of the viejas
very active zonatus, probably most aggressive vieja and pushing over 8" now
beautiful bifa, cool personality too