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Seachem Reef Fusion 2 500ml

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Product details

Management number 234783914 Release Date 2026/07/02 List Price $7.60 Model Number 234783914
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Reef Fusion 2™ contains a mixture of carbonates and bicarbonates at an alkalinity of 4400 meq/L. It is designed to restore and maintain alkalinity in the reef aquarium and provide calcareous species with the essential carbonate needed for growth.

Dose aquarium every 1-2 days. Shake well before using. Add 1 mL of Reef Fusion 1™ per 25 L (6.5 US gallons) of water. (For reference purposes, the cap holds 5 mL.) Add this to a high current area of the tank. Wait a few minutes, then add Reef Fusion 2™ in the same manner, 1 mL per 25 L (6.5 US gallons), after shaking well. It is preferred that the two products be added to separate locations in the tank. This dose contributes 4 mg/L of calcium, and 0.176 meq/L of alkalinity. Never mix Reef Fusion 1™ with Reef Fusion 2™ directly.

Maintain calcium level between 380-420 mg/L. Maintain alkalinity between 3-6 meq/L. Size or frequency of dose may be increased if dosing regimen is insufficient to maintain calcium and alkalinity in these ranges, but do not exceed 4 mL/25 L (6.5 US gallons) per day

FAQ
My calcium is where I want it, but my alkalinity is low. I have Reef Fusion 1 and 2 and was wondering if I could use them separately in order to increase my alkalinity or do they need to be used together?
A: You do not have to use them together. If your system is imbalanced, you may use the supplements individually to adjust to desired calcium and alkalinity range.

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