PlantGuy's Potassium Sulphate- K2SO4 (1lb)

PlantGuy's Potassium Sulphate- K2SO4  is a reliable product for increasing the potassium (K) level in your tank. To make a typical stock solution, add 55g of dry K2SO4 powder to 500ml of RO or distilled water and then add 40ml of this per 100L of tank. This will give you a value of 20ppm (20 mg/l). You would dose 3 times a week when using the EI method.

Adding potassium sulphate at the rate of 0.011g per litre to a tank will increase the potassium (K) level by 5ppm. Example commercial product is `Sulphate of Potash`, a common gardening fertiliser. Typically says it contains K2O (Potassium oxide). But it`s really Potassium sulphate.