been battling cyno for a while now and cant get rid of it for good. only thing that works for me is a lot of water flow in the tank but its too much for my corals and they start to die off. any advice
I had a sea hair for two months and he didnt die until all my algae was gone. for twenty bucks he was well worth it. Check your phos, if its too high you could add a reactor for 30 bucks plus 20 for the media.