Hey Tubs, it sounds like you are saying your method will work with curved tanks as well as the flat, but how do you restrain it from moving? Your comment on the arched tanks working in our favor makes me wonder if you need to build a setup like Buccaneer did for his more square tank or if you can get by with less material? Do you (or anyone else) have any pictures of one that’s been done like that?
Fitting the cage to the curves is what I’m concerned with here, I could do something with cardboard or foam to get the rough shape right, but that’d be a lot of work. If it’s what it takes to do it right then that’s what I need to do, but if you can get by with less I’m a big fan of "work smarter, not harder."