Damsel question HELP

My 4 stripe damsel is one of my coolest fish. He started out the size of a pencil eraser that used to hide in a cove in my LR and is now about 2" long and is as friendly as can be. My 3 stripe damsel and blue devil are spawns of the devil and are as mean as can be. If I wasn't such a softie and not wanting them to die, they would have been gone a long time ago. They will be going into my nanocube soon though, as soon as my rocks get recured, out they go.

 

well i got the non agressive ones so im told.. I actually kinda like them and i wouldnt mind keeping one^^ but everythings just about perfect for a cycling tank.. But hes looking better. when i got home from work i was a little bit worried b/c when i turned the light on i figured id feed them and when i put food in they didnt eat.. no biggie just new to this and dont really have experience yet..

 

Mine were "non-aggressive" too, yellow tail's. They terrorized like you would not believe.