Oddly enough, my two best weapons are my Rainbow Shark and my Chinese Algae Eater. Other then those guys, no one else eats it. The CAE goes nuts, but he's not exactly the best fish to be chucking in a tank. Most awesome algae eater I own, diatoms, BBA, etc, but he's near 8 inches at this point, and I'm waiting for him to go after the other fish, as he just hit 2 years old. My Rainbow Shark though loves the stuff and picks it off reguarly, other then that I've had no luck getting rid of it. Extra CO2, blackout, H2O2, etc it just always comes back, but it looks so neat on the lava rocks I've just given up.