Tetra CO2 Optimat Refill Cylinder

To ensure that aquatic plants continue to thrive, the CO₂ Optimat Refill Cylinder by Tetra is the ideal addition to an existing CO₂ fertilisation set. Carbon dioxide is a vital nutrient for aquatic flora, yet it is often found in insufficient quantities within aquarium water. This practical refill cylinder ensures that plant photosynthesis is optimally supported.

Healthy, vibrant plant growth is not only aesthetically pleasing but also acts as a natural deterrent against algae. By absorbing excess nutrients more rapidly, plants deprive algae of the resources they need to spread. The application is straightforward and controlled via a simple pushbutton, making it easy to maintain the ideal CO₂ concentration. This helps establish a stable biological balance and lush greenery, turning any aquarium into a stunning focal point.

Dosage & Application:

• This replacement cylinder is designed for intensive CO₂ fertilisation in aquariums with a capacity of up to 130 litres.
• Connect the cylinder to the diffusion tube hose and secure it vertically, approximately 5 to 15 cm below the water surface.
• Dosage should be carried out during the lighting phase: one daily application is sufficient for moderately planted tanks, while heavily planted aquariums may require dosing up to twice daily.
• Gently press the dosing head until the water is completely displaced from the tube. The gas will then diffuse slowly and automatically into the aquarium water through the membrane.

Expert recommendation from Oliver Knott:
The Tetra CO₂ Optimat provides a quick and effective way to supply an aquarium with CO₂ without the immediate need to invest in a costly, complex fertilisation system.