I had a couple of blooms, this past few months and this product, ultralife, red slime remover, seems to destroy, and I mean obliterate any sort of bacterial, phytoplanton, hair/slime/ got my glass so clean, one of my kole tangs starved to death. without affecting the biological filtration. Its some sort of metabolite/accelerator. that feeds off nutrients and breaks it down into something that these organisms can't use. My ricordea are excreting their wastes, so whatever this stuff is, its creating food/biomass that ricordea can eat. Macro algae does not seem affected by this stuff, and has grown in, I assume soaking up the elemental nutrients this stuff is generating. I'm also using microbacter 7 to keep the biological filtration stable, while this is all going on. Its weird but magical.