I've got the start of Bryopsis outbreak in my tank 45 gallon, its the little fern like branches shooting up all over my tank. Grrrr. I'm not a big fan of using chemicals to fight stuff but I gotta deal with this stuff asap. Will Reef Flux harm any corals? I've heard it kills xenia, not sure if that's true or not?? I'm also wondering if some you you vets have any suggestions on other ways to beat this? Would pulling rock out and using peroxide be successful? Would a blackout help beat it?? any help would be appreciated, I'm a rookie. The tank is only 6 months old. I've got no reading on nitrates or phosphate but know its present. I feed very sparingly as well, small amount every 2 days. Cheers!!