How to use
The dosing of Yermolayev`s fertilizer Potassium should be the highest in new aquarium (0-1 month) – 1-2 mL per 5 L of water in aquarium weekly. Apply the fertilizer after weekly water change. The same dosage should be applied in mature aquarium (1-18 months) but calculated to volume of water for water change. In case of potassium demanding plants the dosage can me increased to 3 mL per 5 L weekly. The dosage for old aquariums (more then 18 months) can be considerably lower.
Potassium (К+) 50 g/L
3 years at temperature below 30 °С