I have a retic stingray at about 6 or 7" living contently in a 55gal until he grows a little bit. He is nice and fat and healthy. Well here's the thing. We just acquired a 100 gal with a little more floor space than what he has now. The question being, should I move him even though he has plenty of room in the 55 for now and he is healthy. It's kind of a "if it aint broken, dont fix it" kind of thing. I want him to have even more room so he can grow more but I know how hard it is to keep retics healthy and I don't want him to randomly die (which they are known for) Let me know what you guys think!