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    MgSO4 to MgSO4*7(H2O) (Starting to use EI)

    Hi all, I've recently started a new planted tank project, mainly to learn about EI and plants needings. I've bought the EI Starter Kit (from AquariumPlantFood), and made the recipe according to them. 4tsp Potassium Nitrate 1tsp Potassium Phosphate 6tsp Magnesium Sulphate 500ml Water Although...