Hello everyone, just recently I've been getting some brown algae looking stuff on my rocks and a little bit on the back wall of my tank, is there a sucker fish or something of the kind that will help get rid of it, like a rainbow garra or something similar? My tank is 40gallons with a dwarf gourami, 6 black phantoms, 6 corys, and about 8 cardinal tetras. Thanks for any help