I’ve been over feeding for about 3 weeks and my phosphate and nitrate have not gone up. The only thing that has happened is I now have a ton of cyano in my tank. Tank has been running for over 2 years. Before adding softies, I was always trying to lower the nitrates because they were always 15-20 ppm. Now about 6 -8 months in with softies and the nitrates and phosphates have disappeared.