I just got a new 7" Jardini 3 days ago and he's kind of acting weird or timid. He does swim around but he just likes chillin out under a piece of wood at one end of the tank. It might be there are about 50 or so baby convicts in there. Tried to sell or get rid of them with no luck. Thought the'd be a good snack for him but he won't touch them. Should i put another fish in there to eat them all and give him a tank mate???