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Potassium carbonate
From The Aquarium Wiki
Potassium carbonate (K2CO3) is a white salt (supplied as a white powder) which is soluble in water.
This chemical is used in planted aquariums to increase the stability of the water pH by increasing the KH of the water and adds potassium to the water which plants use as a major nutrient. See Plant nutrients.
Often preferred over Bicarbonate of soda as it contains no Hydrogen ions to alter the pH.
- Potassium carbonate (K2CO3) contains 56.58% potassium (K)
When added to water, this powder turns the water milky for a short time as it dissolves into the water.
Adding 80g of Potassium carbonate to 1 litre of water will give a stock solution of 5.0% K2O (4.2% Potassium) W/W
- Adding Potassium carbonate at the rate of 0.011g per litre to a tank will increase the potassium level by 6 ppm [1]
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