How big does the tank need to be to keep three Axolotls (Mexican Walking Fish)?
I’m sorry if these linear measurements aren’t commercially available, but in all the time I’ve spent setting up an aquarium I’ve dealt with capacity in gallons. I’ve had axolotls, tiger salamanders and newts. The larger salamanders and axolotls seemed okay with about five to ten gallons of capacity per animal as they don’t seem to harrass each other much. In your case I’d go with a twenty gallon fish tank about two thirds full with plenty of rocks and hiding spots. As far as dimensions, if you’re building a tank, you can be creative. This is noly an estimate, but something like 60cm long, 45cm wide, and 30cm tall ought to be about right. This will give you space for anything you might like to add, such as a couple of fish or plants. A little less won’t hurt, but neither will more. You want to give them as much room as you can. Good luck with this, those are great pets. EDIT: That’s about ten gallons. You’re getting close to the limit with three in there. I don’t know what else you have
