I just set up my 30 gallon to house 2 cichlids and not being smart I set up the rockwork before I rehoused the old fish. Well, I have since been able to catch the old fish minus one stubborn clown pleco. I am tempted to leave him in there. First off, will he be alright in a cichild tank? Second, because I have it set up with rocks I have no place for driftwood. I understand they need driftwood to survive but is there anything I can feed him to substitute driftwood or should I just find a small piece to stick in a cave for him to munch on? Thanks!