So I'm up to 5 emps now and I have moved them into a 10gal tank. Temp is holding steady around 85F and the humidity is 80%. They seem to be happy with the new enclosure and have had no aggressive behavior between the original 3 and the 2 new emps. I was worried about that because the 2 I got the other day are small. But so far so good. As soon as I can get a camera I'll post pics.