Potassium 50ml – liquid potassium

Kalium is a highly concentrated liquid potassium supplement for reef aquariums. It suits keepers whose potassium is falling, particularly those running zeolite-based filter media, which the manufacturer notes can lead to potassium deficiency.

Why it matters

• Soft corals: according to the manufacturer, potassium takes part in nutrient transport in soft corals.
• SPS colour: a potassium deficiency in SPS corals shows up as faded pink and red coloration, and regular dosing is intended to keep those colours strong.
• Stable level: dosing is meant to hold potassium at 360–380 mg/l, the target given for reef tanks.
• Predictable dosing: 1 ml (about 15 drops) raises potassium by 1.86 ppm per 100 litres, so the effect is easy to calculate for a given tank.

Specifications

• Product: Aquaforest Kalium, liquid potassium
• Volume: 50 ml
• Symbol: AF KALIUM 50 ML
• EAN: 5902026732116
• Weight: 0.14 kg
• Recommended potassium level (reef aquarium): 360–380 mg/l
• Dosing: 1 drop per 100 litres of water, daily
• Effect: 1 ml (about 15 drops) per 100 litres raises potassium by 1.86 ppm

What it works with

Kalium is designed for reef aquariums with SPS and soft corals, where potassium is part of the regular supplement routine. The dose should be adjusted to the coral stock and each tank's own demand, as the manufacturer notes that dosing varies between systems. Water tests are the way to confirm whether the level stays within the 360–380 mg/l target.