Seachem Reef Fusion 1 1000ml – Calcium Supplement for Reef Aquariums

Seachem Reef Fusion 1 1000ml is a highly concentrated calcium supplement formulated as part of Seachem’s two-part Reef Fusion system. It delivers essential calcium along with magnesium, strontium, boron, manganese, and molybdenum—key elements required for strong coral growth and skeletal development.

Designed to be used alongside Reef Fusion 2, Reef Fusion 1 helps maintain stable calcium levels while Reef Fusion 2 supplies carbonates and bicarbonates to support alkalinity. When dosed together, they recreate natural seawater conditions, ensuring optimal reef chemistry and long-term coral health.

The 1000ml bottle is ideal for large reef aquariums, heavy coral stocking, or frequent dosing schedules. Easy to dose and fast acting, Reef Fusion 1 supports consistent coral growth when used as part of a balanced reef supplementation routine.

Key Features:

• Highly concentrated calcium supplement
• Part 1 of the Reef Fusion two-part system
• Enriched with magnesium, strontium & trace elements
• Supports coral growth and skeletal formation
• Designed to be used with Reef Fusion 2
• Suitable for reef aquariums
• Large 1000ml bottle for heavy or long-term use

Seachem Reef Fusion 1 1000ml is a professional-grade reef calcium supplement designed for large or demanding reef systems. Used together with Reef Fusion 2, it helps maintain balanced calcium and alkalinity levels essential for thriving corals and long-term reef stability. Available now at Reef freaks.