Gregcoyote
Aquarium Advice Addict
I have a energetic orange diamond goby that churns the sand thru his gills for hours at a time. I also have a small school of yellow canary wrasses. I noticed that, one at a time they will follow the goby right by his tail and pick off morsels too small for him to catch. He thinks they are trying to clean him, but they're just freeloading. I thought it was pretty cool behavior and wonder if it happens in the wild.