I have Greenwater in my tank. But my parameters are exactly what they should be according to what i have read. Phosphate 1ppm NO3 10ppm Iron and Traces dosed High. Phosphate form Sodium phosphate NO3 from KNO3. I have lost fish recently from forgetting to decholorinate my water. My fishload as of now is 7 Harlquin rasboras 6 Neon tetras 7 SAE's 1 Rudolph shrimp, 4 otos. WHAT could be the problem??????????