Phosphate Remover Question

Its .1. I got a red sea test kit, and it's 0, then .1, .2...ect for the readings and it was closer to the green hue color of .1 than the yellow color of 0. Could be less though I suppose.

My phosphates are up because I was away a week ago and let my friend feed the tank:-X. Even after instructions, he overfed the fish and left all the nori in after each time of adding more (every other day). No biggie I suppose, just a fatter tang and my nitrates got up to almost 10ppm but that's almost fixed.

Seeing as I don't have very sensitive corals, I'm sure it would be fine left alone, but I just hate hair algae and some is starting to crop up.

Thanks for those suggestions nasa and adicus, I'll check those products out, maybe a reactor would be a better long term solution.