I have heard in a few different places that Fancy Guppies eat algae! I have a 30 gallon tank that has a few guppies in it, but lately the algae has been showing up a lot. I did not want to get an algae eater since they supposedly eat it themselves. First of all, is it true that guppies eat algae and second, what kind of algae eating fish or snail ( i hate the little snails that sneak in with live plants, but the larger ones aren't too bad) could I put in with them that would stay small? Thanks