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I have been adding phosphates and nitrates to bump up my levels. Does anyone know about how much time you should wait after an addition before rechecking a level. Thanks
ThanksBoth will show up pretty quick. Nitrate can hang around a while before being consumed by bacteria and coral.
Phosphate is a bit different. In a depleted system, the added PO4 will be quickly bound up in your depleted rock and sand (aragonite). So testing shortly after addition may show some residual, but some hours later it will all be bound up. This pattern continues until the rock and the water are equally saturated.
When both are depleted, it is my experience that nitrates are easy and quick to rise when dosing. Phosphates require MUCH more dosing, easily 5:1 depending on the solution concentration.