i have one p. imp that is likely old (about 7 inches in length with tail straight out, and all he does most of his time is stay in one spot and lay his tail on his back.) the only time he is active is when i feed him or if he fells like exploring the enc. which is every week or so. im going to go resupply on substrait and make a false bottom style tank finally and i might go pick up another emp for him to keep company. the reason i post this is because im scared that the new one will just overpower him seeing how weak he is or that the old one will not stop bothering him for being in his territory:evil: . can you guys help me out here?