Reef Salt for Marine Aquariums – ARKA Organic Active Salt 15 kg – with organic activators for coral colour & growth – phosphate-free & fast dissolving – stabilises water values – ideal for SPS, LPS

• Organically activated reef salt – supports coral colouration & growth with natural bioactive elements – designed for SPS, LPS & soft corals – ideal for biologically balanced reef tanks
• Rich in calcium, magnesium & strontium – promotes healthy tissue & skeleton development – long-lasting polyp extension & vibrant colours – ideal for demanding reef environments
• Dissolves quickly & cleanly in RO water – 37 g per 1 L for 1.022 SG – delivers stable values: pH 8.3–8.5, KH 8–10, Ca 450 mg/L, Mg 1380 mg/L, Sr 8.1 mg/L – no residue, no waiting
• Free from phosphate & nitrate – supports long-term stability & algae prevention – safe for sensitive coral species – no unwanted nutrients or clouding
• Trusted by reef experts – ARKA Organic Active Salt offers professional-grade consistency – developed for modern reefkeeping with natural formulation – available in 1 kg, 10 kg & 20 kg formats

Product Description Organic Active Salt is a specially developed sea salt made from the highest quality ingredients. Thanks to the additional organic ingredients it contains, this enhances the growth, colourfulness and polyp appearance of corals and is therefore ideal for well-stocked running marine aquariums. Organic Active Salt supports a healthy build-up of the calcareous skeleton and lets even the most sensitive species of corals and fish actively thrive. Directions Follow the safety instructions and instructions for use on the product label.