Read this first and then ask about any particulars: http://Red-Eyed Leaf Frog/Red Eyed T...nis callidryas . Think that is a good size enclosure for Red-Eyes. Substrate is your choice; think Heather(?) uses and swears by small towels she washes and keeps a sterile environment. Other's keep them in vivariums, etc.

No matter what you decide, please do quarantine them for at least 30 days in a hospital type set-up. Heat needs depend on ambient temperature in room; specially during Winter season. Good luck !