I have a quarantine tank that's getting a bit dirty. My quarantine tank is fairly large, so normally its used more as a regular tank than a quarantine tank - I get new fish, quarantine them for a month, and then basically just leave them in there until I get new things, in which I move the fish that were in there to the 75 gallon or the 60 gallon aquarium I own to make room for the new arrivals. I have a few 4-5 inch black occellaris in the 60 gallon that can be a bit territorial, and I have a sebae in the 75 gallon who has reached the point where he is thinking about biting me when I stick a finger in the tank when trying to handfeed my tang some seaweed. I plan on getting a lyretail hawk for the 75 gallon and a longnose hawk for the 60 gallon, and ,although I don't use medicines harmful for inverts, I want a clean up crew that is easy to remove from the tank temporarily, has a lower risk of being eaten by these two hawkfish, and won't eat my slower bottom dwelling fish. Any ideas? I would prefer if it can eat foods I add in the tank - the tank is very tall, and it is difficult to remove uneaten foods on the bottom.