Aquaforest. AF Vitality, 50 ml.
1 drop per 100 liters (27 US gal) of water every other day after lights out. Do not dilute. Do not mix together with other products in one container. The product can be dosed by a dosing pump, provided it dispenses with drops. Once opened store in the fridge, if the temperature exceeds 24°C (75°F).