I've been running an Algea Turf Scrubber 12 hours on 8 hours off. And have filter socks in my return and also I am runing a protein skimmer. I have acros in my tank all doing fine my only concern is my nitrates I've been trying to lower them to 20ppm so I began to vodka dose since Monday, so I am 3 days in. Will vodka dosing work if I have zero phosphates. Also how shall I reduce nitrates but get my phosphates up?