ONE-4Reef 2.5L Organic RKS

ONE-4Reef is a super-concentrated organic all-in-one reef keeping solution based on the Modern Reef Proportional Consumption Reef Keeping System. It supplies calcium, alkalinity, trace elements, organic micro-nutrients, and amino acids in one easy-to-use product, helping maintain a thriving, colourful, and stable reef aquarium.

Specially designed for use with the Modern Reef Reef Keeping System (RKS), ONE-4Reef can also be used as a standalone reef keeping method or alongside calcium reactors. Its organic formula supports coral colour, growth, polyp extension, cleaner rocks and sand, clearer water, and improved nutrient balance.

ONE-4Reef is suitable for SPS, LPS, soft coral, and mixed reef aquariums, and can be dosed manually or automatically. When used alone, it offers a space-saving solution with one canister and one dosing pump. It may also be used as a “saving-mode” application with RKS or calcium reactor systems.

Key Benefits

• Organic all-in-one reef keeping solution
• Supplies calcium, alkalinity, trace elements, micro-nutrients, and amino acids
• Supports coral colour, growth, and polyp extension
• Helps maintain cleaner rocks, sand, and clearer water
• Helps reduce excess nutrients such as NO3 and PO4
• No accumulation of by-products such as sodium or chloride
• Suitable for SPS, LPS, soft coral, and mixed reef aquariums
• Can be used alone, with Modern Reef RKS, or with calcium reactors
• Suitable for manual or automatic dosing
• Space-saving single-canister system when used alone

Dosage

When used alone, start by dosing 4 mL per 100 litres daily. Increase by 2 mL per 100 litres every 2–4 days until calcium and KH remain stable.

Do not exceed 20 mL per 100 litres per day.

When used with Modern Reef RKS or a calcium reactor, please follow the detailed ONE-4Reef guide for the correct setup and adjustment method.

Important

ONE-4Reef may reduce nutrients due to bacterial activity from organic dosing. Monitor NO3 and PO4 regularly and dose Modern Reef N+ and P+ if needed, especially in low-nutrient reef aquariums.

ONE-4Reef should also be considered a form of carbon dosing. Reduce or stop other carbon dosing products, such as Modern Reef C+, when using ONE-4Reef.