SeaChem Reef Fusion 1 – 2 Liter (67.6 Fluid Oz)
Reef Fusion 1 provides 100,000 mg/L of ionic calcium along with biologically appropriate levels of magnesium, strontium, boron, iron, manganese, and molybdenum. This essential supplement supports the health and growth of reef aquarium inhabitants.
Reef Fusion 1 and Reef Fusion 2 work together to maintain balanced calcium and alkalinity levels in a reef aquarium system. Reef Fusion 1 supplies calcium, while Reef Fusion 2 supplies alkalinity.
| Specification | Value |
|---|---|
| Calcium | 100,000 mg/L |
| Magnesium | Biologically appropriate level |
| Strontium | Biologically appropriate level |
| Boron | Biologically appropriate level |
| Iron | Biologically appropriate level |
| Manganese | Biologically appropriate level |
| Molybdenum | Biologically appropriate level |
| Volume | 2 Liters (67.6 Fluid Oz) |
| Brand | Sea Chem Laboratories Inc. |
FAQ
What is the calcium concentration in Reef Fusion 1?
Reef Fusion 1 contains 100,000 mg/L of ionic calcium.
Does Reef Fusion 1 provide alkalinity?
No, Reef Fusion 1 provides calcium. Alkalinity is supplied by Reef Fusion 2.
What other minerals are included in Reef Fusion 1?
Reef Fusion 1 includes biologically appropriate levels of magnesium, strontium, boron, iron, manganese, and molybdenum.

Rebecca North –
I’ve been using Reef Fusion 1 with Reef Fusion 2 for over six months. The calcium levels stay stable and my corals are growing well. The product is easy to mix and the instructions are clear. No fluctuations in water parameters so far.
Thomas Campbell –
Good calcium source. I noticed a steady increase in coral coloration after a few weeks. The magnesium and trace elements seem to support the overall health of the tank. A reliable part of my daily maintenance routine.
Justin Hardacre –
This product works perfectly with my reef setup. I mix it once a week and monitor levels regularly. The calcium readings are consistent, and my anemones have shown improved movement and color.