AF Kalium 10ml

***Aquaforest Kalium 10ml has no longer available***
Supplement containing highly concentrated potassium. Potassium is an important element responsible for neurological functions. In soft corals, potassium participates in the transport of nutrients. In SPS corals the deficiency of this valuable element causes a faded pink and red color. Usage of zeolites-based filtration media in the aquarium may lead to potassium deficiency. Regular and balanced use of Kalium allows maintaining proper level of potassium and strengthens the red and pink coloration of SPS corals. The recommended level of potassium in aquarium water is 360 –420 mg/l (ppm).
Dosage: 1 drop per 100 liters (27 US gal) daily. 1 ml of Kalium in 100 l (27 US gal) of water raises the potassium level by 1.86 ppm. It is important that each aquarium is different and the dosage depends on the coral cast and individual needs.
Do not overtighten the screw, otherwise the cover might be damaged.

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AF Kalium Potassium Supplement for SG Reefs

AF Kalium is a concentrated potassium supplement for marine systems, and while this particular bottle may not always be in stock, potassium is a genuinely important element on an SPS reef. It plays a role in nutrient transport in soft corals and underpins the deep reds and pinks SPS keepers chase. A shortfall typically shows as faded, washed-out colour in pinks and reds rather than any obvious health problem, which is why testing matters.

One thing we flag to local reefers is that zeolite-based filtration can quietly pull potassium down, so if you run zeo media keep a closer eye on it. In our warm 27-29C tanks consumption is steady, so build potassium into a fixed weekly schedule and dose into flowing sump water in small portions. Stay near the lower end of any suggested range unless a test confirms you genuinely need more, since chasing colour blindly rarely helps.

Our wider marine additives range carries comparable potassium options if this is unavailable. Read our reef potassium dosing guide and reef trace elements dosing guide to fit it into a balanced routine.