It really also depends on how often you feed them and if you remove the discarded food that they don’t bury after.Gotcha, Ill look into this! Might be a down the road project, I think my boyfriend might go a little nutty with a 4th tank lol
I did not realize they had that heavy of a bioload when it came to being a messy eater!
The other issue is they will bury food and old molts in their burrows that you most likely will not easily be able to get to or into to clean.