Eliminate Daily Dosing & Stabilize Your Reef

Tired of constantly adjusting calcium and alkalinity?

The Reef Octopus CR140 Calcium Reactor provides a reliable, automated solution for maintaining stable water chemistry in reef aquariums especially in systems with high coral demand.

Designed for efficiency and ease of use, this reactor delivers consistent calcium and alkalinity levels without the need for daily manual dosing.

How It Works

The CR140 uses CO₂ to lower the pH inside the reactor chamber, allowing calcium reactor media to dissolve and release essential elements like calcium, alkalinity, and trace minerals back into your aquarium.

Result:

• Stable parameters
• Healthier coral growth
• Less daily maintenance

Why Choose a Calcium Reactor?

For reef hobbyists with growing or SPS dominant systems, maintaining stable parameters becomes critical.

A calcium reactor helps:

• Maintain consistent calcium and alkalinity levels
• Reduce fluctuations that stress corals
• Eliminate the need for constant manual dosing
• Support long term coral growth and health

Key Features

• Integrated VarioS DC pump for precise flow control
• Efficient recirculating design for maximum media contact
• Durable acrylic construction built to last
• Compact footprint for easy sump placement
• Quiet operation
• Designed for consistent, stable performance

Ideal For

• SPS and mixed reef aquariums
• Medium to large systems with high demand
• Hobbyists looking to automate dosing
• Reef keepers seeking long term stability

Technical Specifications

• Reaction Chamber Diameter: 5.5”
• High efficiency recirculating design
• Includes VarioS DC feed pump
• Suitable for a wide range of aquarium sizes

What You’ll Need (Sold Separately)

To operate this calcium reactor, you will also need:

• CO₂ tank
• CO₂ regulator with solenoid
• Calcium reactor media
• pH monitoring (recommended for best results)

Pro Tip

Pairing a calcium reactor with stable pH management (such as a CO₂ scrubber setup) can further enhance performance and coral growth.

Warranty

Backed by a 1-Year Manufacturer Warranty

Why Shop with Infinity & Beyond Aquatics?

At Infinity & Beyond Aquatics, we're more than an online aquarium store—we're hobbyists who understand the importance of quality equipment and dependable service. Every product we offer is carefully selected from trusted manufacturers to help you build and maintain a thriving aquarium with confidence.

When you shop with us, you'll enjoy:

• Authorized Dealer for Premium Aquarium Brands
• Genuine Products Backed by Manufacturer Warranties
• Carefully Curated Selection for Freshwater & Saltwater Aquariums
• Fast Order Processing
• Responsive Customer Support from Fellow Aquarists
• Secure Checkout & Trusted Shipping Partners
• Whether you're just getting started or maintaining an advanced aquarium, we're committed to providing the products and support you need for long-term success.

Shipping Information

We take great care to ensure your order is packaged securely and shipped safely. Shipping rates are calculated at checkout based on your location, order size, and selected shipping method.

Orders of $100 or more qualify for FREE Standard Shipping (exclusions may apply to oversized, freight, or specialty items).

Most in-stock orders are processed within 1–2 business days. If an item ships directly from one of our trusted supplier partners, processing and delivery times may vary slightly. You'll receive tracking information as soon as your order is on its way.

Our goal is to get your aquarium supplies to you quickly, safely, and ready for your next project.