Best Way To Eliminate HUGE Hair Algae Problem And Coral Issues?

[whatcaneyedo]

I'd revert back to using GFO to starve the hair algae of phosphate. Boosting magnesium up to 1500 specifically with Kent Tech M has worked for a lot of us to get rid of bryopsis if that is the type of hair algae that you have. For some people, using conventional magnesium salts works too. For me, it was Kent Tech M. That and good old fashion water changes... I've played around with Prodibio a little bit but its just too expensive and I don't believe it does anything to reduce phosphate.