If you have the means, the space, and the time, PLEASE get those darling animals out of that situation!! Man, I wish I could take them...sounds like two MIGHT be Okeetees or Bloods!

4 corns of differing sizes all in one tank...SIGH. I am so tired of people believing what they hear and see from pet stores! *Ok, rant over*

Anyway, corns are much easier to care for, need less room (adults live comfortably in 3x2' cages or 20long tanks), and less stringent temp requirements (82-84 warm, 70's cool, ambient humidity is fine).

The biggest thing here would be space and tubs or tanks to put them in. Corns do fine in tubs, but you need to melt more holes since they don't need high humidity.