I've had mine for about 2 years..Personality plus..yes he cleans my sand bed..makes
caverns under rock..make sure your rock is placed in very stable position..no problem
feeding..he eats flake,brine,shrimp,cyclopleze..what ever passes his face..
I do have a lawnmower blenny allready will they get along? I love Bennie my little lawnmower blenny he is fun to watch & he does a good job cleaning in the tank.
Is there any good material I can cover the overflow up with?
I used the black plastic screen they sell at home depot for covering your gutters.
It will let the water flow freely and stop most of your livestock from going down.