this makes me wonder because I figure my GG is about 24" long, about 3" thick and 8" tall. That would mean he should be in a 500 gallon tank..... I'm sure some folks on here will say "well yeah dummy," but I've had him for about ten years now and he was living in a 55 when I got him and his tank mate BP from a former boss who let the water go for a couple of months.... I've since moved him into the biggest aquarium I could afford, a 150 gallon with a canister. I plan to get him a bigger home even though he is the only fish I currently have in the tank (He has outlived or killed everything else of course), but I am not a wealthy person. I'm just a poor schmuck who tried to help this guy when his owner quit caring.... I love Popeye to death and want to give him the best chance I can to live as long as possible. I just don't know if I can afford a tank that large and the filtration/electrical bills that would go with it.... the 150 is plenty wide for him to move around in as it is... am I ok with him in this aquarium alone, or should I make the new tank a priority?