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Potassium sulphate (K2SO4) contains  44.9% potassium (K)

Potassium is a macronutrient – essential for healthy plant growth

Container sizes:  100g, 250g or 500g

Potassium sulphate can be added directly to a planted aquarium, or it can be mixed with water (preferably RO or DI) to make a stock solution. It can be mixed with other ingredients to make a bespoke fertiliser.

If using the EI dosing system typical maximum weekly uptake figures might be:-

Potassium (K) 30ppm

Note! 13 ppm may have been provided from potassium nitrate and 1.3 ppm from potassium phosphate so only an additional 15 ppm is required.

Dry dosing

Adding potassium sulphate at the rate of 0.011grms per litre to a tank will increase the potassium (K) level by 5ppm.

Added 3 times per week levels will increase by:-

Potassium (K) 15 ppm

Stock solution

Adding 11g of potassium sulphate to 1 ltr of water will give a stock solution with the following analysis:-

0.59% K2O (0.49% K)

0.20% S

Added to the tank at the rate of 1ml / 10 ltr 3 x week will add 15ppm K

Shop online for Potassium Sulphate here

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