Tropical Fish Bottom Feeders Suggestions For Bottom Feeder Eel Like Fish In A 30 Gallon Tropical Community Tank?

Suggestions for bottom feeder eel like fish in a 30 gallon tropical community tank? - tropical fish bottom feeders

I thought for a time, Loach, but I'm sure that the food, what they do. And I hear them live better in cold water.

Thus, any suggestion from the bottom feeders like an eel?