Yes, he is in with my red bellies. I put in a 4" 45 degree PCV elbow and covered it with stones, and blocked in the back with some driftwood, with a second exit only he can manage to get through. Only he, the pleco and the mainganos can get through the front, but the mainganos dont dare, and the pleco just does the house keeping. You can see part of it in the left of the pic. Well, here is a pic for an idea. Its a little bulky because every day I had to restack it after the Ps dismantled it during the night. So, I just stacked enough until it was very stable. When I move this summer I am going to silicone the rocks to the PVC so its less bulky, and leave the "front door" stone unbonded so I can remove to clean out if need be.