I've been having a nightmare getting my phosphate levels up. I've been dumping Seachem's stuff in for a week now, and the levels are staying VERY low--around 0.03ppm. In my reef tanks, I had to pay for stuff to keep the levels this low (reefing is backwards from planted tanks). I decided to test the Seachem supplement with a Salifert test. Guess what--it tested at 0.1ppm. I'm frankly stunned, as this means it is mostly water, with very little phosphate in it. Has anyone else had this problem, or is it just a bad batch?