grouper therapy;1051636 wrote: Cyano Bacteria
bkostuch;1051650 wrote: Not reddish at all brown. I'm think now it's Dino's
bkostuch;1051658 wrote: So i'm now wondering what caused these and how to battle them. I added a GFO and Carbon reactor and whats weird is that it seems to have come right about the same time. PO4 has dropped drastically since adding the reactor.