I've never owned one but I'm shopping around. What I've seen is that bloods can get unpredictably BIG. Some reaching 7-8 feet long and up to 6-7 inches thick. That's almost the thickness of a bowling ball! So you would have to have a pretty big tub. Probably at least 100 qts or something like a 75 gallon aquarium/terrarium. Look for videos on YouTube of owners. Especially feeding videos and look at their husbandry. Some owners even feed chickens. I can't wait to have one of my own