And plus, even though it's temporary, what about water quality? It needs to be safe for axolotls to breathe, say you put it in there 3 times a week (Which you shouldn't, stress) and you put different water each time. Either you take some of your axolotls tank water for that, which would be a lot to begin with, or you use bottled or purified tap water or something. If it poops while you're not watching it, (Which you should) it could get ammonia poisoning. I'd listen to everyone telling you against it, even if it seems like we're crushing your dream. If you could make it to where the water is perfect and doesn't slosh around, and every other variable is perfect, then do it! Otherwise, don't