Public aquariums, fish farms, and aquaculture centers running thousands of gallons need calcium reactor capacity that consumer-grade equipment isn't built to deliver. The Reef Octopus PRO Commercial Calcium Reactor line spans three sizes, rated up to 4,000 gallons.
Why Commercial-Scale Calcium Reactors
At commercial scale, calcium and alkalinity demand from coral growth or high-density stocking is far beyond what a home-tank reactor could keep pace with — the PRO line is engineered specifically for that continuous, heavy-duty demand.
Choosing a Size
- 250PRO — built for public aquariums, fish farms, and aquaculture centers up to 1,500 gallons.
- 300PRO — rated for commercial systems up to 2,700 gallons.
- 350PRO — the largest in the commercial calcium reactor line, rated up to 4,000 gallons.
What to Plan For
- Facility-scale plumbing and power infrastructure, typical of commercial life-support installations.
- Pairing with the appropriate Water Blaster recirculation pump for your specific PRO reactor size.
- Professional installation and ongoing maintenance planning appropriate to continuous commercial operation.
The Reef Octopus PRO Commercial Calcium Reactor line is available at Marine Concept Supply — order online or contact our shop in Wheeling, IL, for installation guidance. Shop 250PRO, 300PRO, or 350PRO, and browse more reactors.

