alright, i have an 11inch african bonytongue in a 75gal and it's starting to get squeezy for it. along with the fact that the filtration can barely keep up with it's huge diet. so i am thinking of adding it into the big tank. in it, i have as most of you should know, 2 ~20inch cuban gars. it is a 5x3x2 tank. what size would it be safe to add the african? i have a small 10" spotted in with the cubans, and it has not been touched. however the cubans have tried to attack the african when i tried to introduce it in at 10". thanks for the replies