MACRO (1 LITER)
- Potassium nitrate: add 6 level measuring spoons to your 1 liter bottle
- Potassium phosphate: add half a measuring spoon to your 1 liter bottle
- E202: add 1/3 measuring spoon to your 1 liter bottle
- Optional: add 10 ml of vinegar to your 1 liter bottle
Then fill your bottle with RO water and shake hard for 60 seconds. A weekly dosage of 30ml on 100 liters of aquarium water gives a value of 20ppm nitrate and 2ppm phosphate.