trying to clean LR, glass, and sand or 1 of the 3
there is a dragon goby I like to use to clean tops of sand
lawnmower blennie is a good choice if you algae for him to eat,
kole tangs are algae eating monsters, both are good off glass and LR, but you can not have both
snails and hermits are toss up depending on your coral they will climb over it