Targeted potassium increase – ARKA Basic K raises the potassium value in the saltwater aquarium in a controlled way and helps prevent potassium deficiency. For reef tanks with regular consumption and potassium supply. Growth and vivid colours – Potassium supports optimal coral growth, a strong calcareous skeleton and intense colours. Particularly useful in demanding SPS, LPS and mixed reef aquariums. Compact size for small tanks – The 118 ml bottle suits nano reefs, targeted corrections and small systems with modest consumption. Good for testing, topping up and a controlled increase. Free of nitrate and phosphate – The pure formulation raises the potassium value in a targeted way without adding extra nutrients. For aquarists who correct values precisely and keep their system stable. Easy dosing – 1 ml per 100 l raises the potassium value by 1 mg/l, and the dose can be given daily. Target range in saltwater: 380–420 mg/l. Raise potassium slowly and never let it fall below the recommended values.
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