Seachem Reef Aquarium Alkalinity Supplement, 2 L Reef Fusion 2

Seachem Reef Fusion 2 is a reef aquarium alkalinity supplement designed to restore and maintain alkalinity, supplied in a 2 L (67.6 fl oz) size.

• A carbonate and bicarbonate blend at 4400 meq/L alkalinity — provides carbonate for calcareous species.
• Simple 1:1 use with Reef Fusion 1 — pairs alkalinity support with calcium support.
• 500 mL treats 3250 gallons — gives a stated treatment coverage figure for planning aquarium care.
• Part of Seachem’s most concentrated two-part system — combines the two components in an equal ratio.

Reef aquariums need both calcium and alkalinity as part of the foundation for coral growth. Reef Fusion 2 is the alkalinity component, made for aquarists maintaining a reef system with calcareous species. Used as directed alongside Reef Fusion 1, the two-part system is designed to maintain critical calcium and alkalinity levels.

What does Reef Fusion 2 do in a reef aquarium?

Reef Fusion 2 restores and maintains alkalinity by supplying a mixture of carbonates and bicarbonates. Its carbonate supports calcareous species that need carbonate for growth, making it the alkalinity side of the Reef Fusion system.

• Formulated for reef aquarium use.
• Provides carbonate needed for calcareous species growth.

How does Reef Fusion 2 work with Reef Fusion 1?

Use Reef Fusion 2 with Reef Fusion 1 in a 1:1 ratio as the two parts of the system. Reef Fusion 1 provides calcium, while Reef Fusion 2 provides alkalinity; together, and when used as directed, they are designed to maintain the critical levels needed for healthy coral growth.

• The two products have distinct roles: calcium from Reef Fusion 1 and alkalinity from Reef Fusion 2.
• The system also provides biologically appropriate levels of other elements and trace minerals.

How much does the 2 L size treat?

The 2 L (67.6 fl oz) size is intended for reef aquarium alkalinity maintenance, and 500 mL treats 3250 gallons. Follow the product directions when using it; the stated treatment figure helps put the product’s coverage in context without changing the required dosing method.

• Package volume: 2 L (67.6 fl oz).
• Stated coverage: 500 mL for 3250 gallons.

Reef Fusion 2 suits reef aquarists maintaining alkalinity for calcareous species as part of a two-part calcium and alkalinity system. Its carbonate-and-bicarbonate formula, equal-ratio pairing with Reef Fusion 1, and reef-specific purpose make it the alkalinity component of that system.