Hi, thank you so much for your response. I will really look all of this over and get the supplies. Unfortunately, the little guy didn't make it through the night.

He has a LOT of decay and damage on his hands and feet... I have no idea when it started, but it was less than a few days in the making. His tank-mate is totally healthy (even escaped again last night...fixed that problem up once and for all with some tape), so I don't know, but I shade away from the belief that it is the tank. I really have no idea.

They are pretty new, so it's possible it wasn't healthy to begin with. I wasn't able to get a vet exam before I relocated after buying them.

Ugh... so many unanswered questions. R.I.P. Trust. May your next life be less stressful buddy.