Hello, I was just going to create a new post about beard algae myself. It has returned in my planted tank. I had it perhaps a year ago, but it seemed to have disappeared on it's own. It might have happened when I started to bubble CO2 into the tank, but it has come back with a vengeance. I've read that Siamese Algae Eaters are the only fish that will eat it. I'd like to know what others in the forum might have to say.