I'm using the red sea algae control test kit. I'm getting 0 nitrates and between .04-.08 phosphates. I added some rowaphos about a week ago to help lower my phosphates but I can't get my nitrates up. I feed a good amount daily. It's a mix of food between pellets, brine shrimp, reef frenzy, reef roids and vitachem. Should be loaded with nitrates i figure. Any help with this ?