Seachem Reef Fusion 1 

Maintain proper calcium levels in your reef aquarium with Seachem Reef Fusion 1. This is  a concentrated calcium supplement designed to support coral growth and skeletal development.

Reef Fusion 1 is part of Seachem’s two-part dosing system and is specifically formulated to deliver essential calcium needed for reef stability. When used alongside

Reef Fusion 2 (sold separately) , it helps maintain balanced calcium and alkalinity levels for long term success.

How It Works 

Corals require calcium to build and maintain their skeletons.

Reef Fusion 1 works by:

• Increasing calcium levels in the aquarium
• Supporting coral growth and structure
• Helping maintain stable reef parameters

Result: Stronger, healthier coral growth

IMPORTANT: Proper Use

Reef Fusion 1 is NOT meant to be used alone long-term.

It is part of a two-part system:

• Reef Fusion 1 → Calcium
• Reef Fusion 2 → Alkalinity

Best Practice

• Dose separately from Reef Fusion 2
• Allow time between dosing each part
• Test calcium and alkalinity regularly

What to avoid

• Do NOT mix with Reef Fusion 2 before dosing
• Do NOT dose without testing
• Do NOT overcorrect quickly

Improper use can:

• Throw off tank balance
• Stress corals
• Cause parameter swings

What It Helps With

• Low calcium levels
• Supporting coral growth
• Maintaining reef stability
• Balanced dosing systems

Why It Matters

Calcium is one of the most critical elements in a reef tank.
Without proper levels, corals cannot grow or maintain structure.

Perfect For

• Reef aquariums (LPS, SPS, mixed reefs)
• Hobbyists dosing calcium
• Maintaining reef parameters

How to Use

Add as directed to raise and maintain calcium levels.

Always test before and after dosing
Adjust gradually for best results

Pro Tip

For best results, use with:

• Reef Fusion 2
• Calcium test kit
• KH (alkalinity) testing
• Save when purchasing together with the Fusion 1 & Fusion 2 Bundle 

Balanced dosing = stable reef