I have 3 emerald crabs who are not looking so much like an emerald anymore. They are starting to look like they need food. I also have a lawnmower who does not have a fat tummy anymore. the coral banded shrimp, peppermint shrimp and emerald crab could do some scavenging too. My rocks are totaly devoid now of anything they will eat, so i need your help. If you have some rock that are in need of a good cleaning( green hair algae, macro overgrown, bristle worms, etc) i could either trade for them, or return them when they are clean.