Just recently started to get a few strands of dynos in my 15 gal AIO and checked my nitrate and phosphate. Both at 0. I feed pellets 2x a day and a cube of Emerald feast in the evening. About 3x a week I use Red sea AB+ and 2-3x a week Reef Roids. Was maintaining at 5 nitrate and .025 phosphate but now both are at 0. Since feeding is not doing it I looked at Neo phos but it said it lowers nitrates. And the nitrate additive lowers phosphate. what the heck? How would adding 2 products that lowers each other be productive? I've slowed down on water changes and am running my skimmer drier but no luck. Any ideas about how to increase both without throwing a buffet table in the tank? I already feel like I'm over feeding for a 12gl water volume. Everything looks great and is growing but I know I need to get my levels up before long. Tests were done with Salifert and backed up by Hannah. I dose Mag, Calcium and alkalinity about every 3rd day and every other level stays perfectly. Just those 2 jacking me up.