SeaChem Reef Fusion 2 – 2 Liter (67.6 Fl Oz)
Reef Fusion 2 contains a mixture of carbonates and bicarbonates at an alkalinity of 4400 meq/L. It is formulated to restore and maintain alkalinity in reef aquariums, providing calcareous species with the essential carbonate needed for healthy growth.
When used in combination with Reef Fusion 1, which supplies calcium, this product supports a balanced reef aquarium system by maintaining stable calcium and alkalinity levels.
| Specification | Value |
|---|---|
| Alkalinity | 4400 meq/L |
| Volume | 2 Liters (67.6 Fl Oz) |
| Brand | Sea Chem Laboratories Inc. |
| Royal Item Number | ASM1218 |
FAQ
What is the alkalinity level in Reef Fusion 2?
The alkalinity level in Reef Fusion 2 is 4400 meq/L.
How does Reef Fusion 2 work in a reef aquarium?
Reef Fusion 2 provides essential carbonates and bicarbonates to maintain alkalinity, supporting the growth of calcareous reef species.
Can Reef Fusion 2 be used with other SeaChem products?
Yes, it is designed to be used with Reef Fusion 1 to maintain balanced calcium and alkalinity levels in a reef aquarium system.

Molly Paterson –
I’ve been using Reef Fusion 2 with Reef Fusion 1 for several months. My coral growth has improved noticeably, and the water parameters stay stable. Easy to measure and mix into the tank water.
Ava Forsyth –
The alkalinity levels remain consistent after regular use. I noticed better coloration in my polyps. It’s a reliable supplement for maintaining reef balance.
Edward Bond –
Perfect match with Reef Fusion 1. My tank has maintained stable alkalinity without fluctuations. No issues with pH or calcium levels after consistent dosing.