hair alage

I seem to be finding chunk of black hair algae atached to some of the plants in my tank.. I started pullin git out as i find it.. How does one fully get rid of it? The tank is 84G with a FX5 and CO2.. I haver 2x54W t5HO lights and does 5ml metracide 14, 8ml macros, 8ml micros (PPS-pro...