SeaChem Reef Fusion 2 – 500 mL (17 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 growth.
When used in combination with Reef Fusion 1, which supplies calcium, this product helps maintain balanced calcium and alkalinity levels in a reef aquarium system.
| Specification | Value |
|---|---|
| Alkalinity | 4400 meq/L |
| Volume | 500 mL (17 Fl Oz) |
| Brand | Sea Chem Laboratories Inc. |
| Royal Item Number | ASM1213 |
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.

Boris Wilkins –
I’ve been using Reef Fusion 2 for several months now and it has helped stabilize my alkalinity levels. The product is easy to mix and works well with Reef Fusion 1. My corals are growing steadily and the water parameters remain consistent.
Virginia Chapman –
The alkalinity stays stable after adding Reef Fusion 2. I noticed a difference in coral coloration and growth after a few weeks. It’s a reliable supplement for maintaining reef tank balance.
Madeleine King –
This product is exactly what I needed for my reef tank. It’s easy to dose and keeps alkalinity at a steady level. Works perfectly with Reef Fusion 1 for balanced calcium and alkalinity.