Red Sea is pleased to introduce an exciting new CO2 system for planted aquariums.
The Pro System is a complete, efficient and user-friendly system to maintain a desired level of CO2 in planted aquariums from 10 to 125 gallons (40 to 500 Liters).

The CO2 Pro System contains the following components:
Full featured, dual gauge, safety regulator that is supplied in versions suitable for connection to standard refillable CO2 cylinders, disposable CO2 cylinders and "Paintball” CO2 cylinders.
Independent, high precision, in-line, needle valve that can be located in a convenient location on the side of the aquarium and be set to stable flow rates as low as 4 bubbles per minute.
Highly efficient CO2 Reactor 500 that includes an adjustable flow water pump and can dissolve over 180 bubbles of CO2 per min
Bubble Counter with integrated check valve
Real time CO2 indicator

CO2 Pressure Regulator:
With dual gauges and independent needle valve included
Full-featured safety regulator with independent needle valve. Designed specifically for aquarium use, the Pressure Regulator and Needle Valve are independent units connected by low-pressure CO2 tubing.
The high precision fine-flow valve is designed to be mounted on the side of the aquarium enabling easy access for regular flow adjustment or complete shut off. Easily upgradeable for automatic control with an in-line solenoid control valve.

Easy to read high and low pressure gauges
Integral pressure relief valve
Independent, fine flow valve
Stable flow rates from 4 bubbles per minute




CO2 Needle Valve:
The independent needle valve is designed to be mounted on the side of the aquarium enabling easy access for fine flow adjustment or complete shut off. The CO2 Cylinder / Regulator can be located out of site, behind or under the aquarium.
Stable flow rates from 4 bubbles per minute
Unique user-friendly mounting & operation




CO2 Reactor 500:
Efficiently dissolves CO2 into aquarium water
This fully adjustable, power driven, super compact CO2 reactor will simply and efficiently maintain the desired level of CO2 in a wide range of planted aquariums. The turbulent flow CO2 / water interface inside the reactor ensures almost complete dissolving of available CO2 while non-dissolvable gases are gently vented to the water surface.
Highly effective vortex reaction chamber
Adjustable flow 250 l/h (65 gal/h) pump
Super compact design 9.5 x 4 x 5.5 cm (3.75” x 1.6” x 2.2”)
Dissolves CO2 at flow rates of up to 180 bubbles per minute
Suitable for planted aquariums 40 to 500 Liters (10 – 125 gal)
CO2 Indicator:
Real time CO2 monitor for freshwater aquariums
The Red Sea CO2 indicator gives an easy to read, continuous, qualitative visual indication of the current CO2 level in a freshwater aquarium.



CO2 Bubble Counter:
Compact, Easy to use bubble counter with integrated check valve
Check valve protects the gas system from backflow of aquarium water.
Provides an accurate measurement of the CO2 flow rate