I have a 20 gallon long tank with Endlers, celestial pearl danios, and snails. There is a baby albino bristlenose pleco that is living in there now until it's big enough for my 54 gallon. I am looking for ideas for very small bottom dwellers (under 2") that would get along with my current fishes. I had considered kuhli loaches, but I think they may get too big for my setup. Any advice?