So the 40 breeder tank would be a good size for adult balls? Better than the larger 90 and 75 gallons I have now? I just want to be sure they have plenty of room and with to hides and a large water bowl it feels like they would be camped. I do have limbs and rocks they climb so I guess that adds surface area..haha. The 40 gallon tanks would be a nice change though due to saving a ton of room in the house. I will be looking at UTH, which one is best recommended for a self stick style?. The foil mod for the lids will be no problem, I work for Reynolds Aluminum and have tons of that crap around the house