Was wondering if a 55gallon would be capable of houseing a ropefish for life or if I would need to upgrade has it got larger. Use to have one and seemed to thrive for the 8months I had it before it slithered out of the tank in the middle of the night. A while back on another forum I was told no. But it was the same forum that said a 29gallon was too small for a sengal. Although from the posts I've read here it seems that most members believe a 29gallon to be fine for a sengal. So thought I'd come to the experts and see what y'all think on the subject.