He's right he would!!! lol Aro's and Ray's are like a twisted aquarium fantasy of mine, right now though I would probably put in a nasty pike cichlid!!!
i would think you need at least a 180 for 10 red bellies, but then again i have never kept them. for stingrays, the tank can not be a 125 standard, but could work if you can get your hands on a custum tank like a 125 wide or something, although I think there are afew dwarfs that work for a 125 standard. I have not kept them but i have reasearched them and am planing on a tank for them in the summer