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I'm just wondering how many of you guys dose KH2PO4 to your tank?

  • Dose it to keep it around 1,5-2

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I use Fleet Enema to maintain PO4 levels around 0.5-1ppm, you can easily double that amount IF every other element is also well balanced. High PO4 levels can create problems if other imbalances or deficiencies are present.

In absence of a PO4 test kit, I usually find that if I need to dose NO3 to maintain it above 0ppm, I will also need to dose PO4.

Hope that helps
Giancarlo Podio
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