Potassium Carbonate – (KCO3)
March 5th, 2010
Potassium Carbonate (KCO3) contains 56.58% potassium (K) It is used as a source of Potassium in planted aquariums. Potassium is a macro nutrient – essential for healthy plant growth
It 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 also be mixed with other nutrients to make a bespoke fertilizer. It is also an important chemical used in EI dosing systems.
If using the EI dosing system, typical maximum weekly uptake figures might be:-
Potassium (K) 30ppm
Aquarium Dry Dosing
Adding at the rate of 0.011 grams per ltr to a tank will increase the potassium (K) level by 6 ppm.
Added 3 times per week levels will increase by:-
Potassium (K) 18ppm.
Stock Solution
Adding 80g of potassium carbonate to 1 ltr of water will give a stock solution with the following analysis:-
5.0% K2O (4.2% K)
Added to the tank at the rate of 1ml / 10 ltr 3 x week will add 13 ppm K.
Posted in Aquariums