Personally I like the S-lite 41-qt tubs. At first glance I thought they were too small, but they are the pefect size and height in my opinion; they offer a cozy, snug fit for my largest females, and are perfect for breeding pairs, while it is easy to crowd them with hide spots and a large water dish for my still-growing Spider, Pastel and '06 female. One size fits almost all (but for smaller hatchlings they would be pretty large, so I plan on building a hatchling rack for this year's crop.)