I love my bloods, and am looking to add another 1 or 3 in the near future...lol They are very different than ball pythons, but mine are not evil in any way. They can be a bit vocal, at least mine can be. They can be huffy when I pull them out, but calm down quickly. I can also say that their feeding response is unreal. As for tubs many people use tubs the size of Iris VE-175. I have mine in cb-70's right now because they are only around 750 grams, but when they get bigger I have a few 2'x4'x12" PVC enclosures.