CO2 Pipe for Aquarium is a practical accessory for planted aquarium and aquascaping setups that use an external CO2 injection system. The tubing provides a connection between CO2 equipment such as a regulator, bubble counter, and diffuser, allowing carbon dioxide to be delivered into the aquarium for aquatic plants.
This CO2 pipe is sold per meter, making it convenient for aquarists who need a specific length rather than purchasing a fixed-size hose. It can be cut to the required length according to the aquarium layout and position of the CO2 equipment. Aquarium CO2 tubing is available in different materials and sizes, so the pipe should always be selected according to the requirements of the CO2 system and its fittings. Common aquarium CO2 tubing specifications include 4 mm internal diameter and 6 mm external diameter, although compatibility should be confirmed before purchase.
Key Benefits
- Designed for planted aquarium CO2 supply, control or distribution.
- Supports healthier plant growth when balanced with lighting and nutrients.
- Useful for neat installation and more consistent aquascaping routines.
Usage Guide
Use with suitable tubing, diffuser and bubble control. Start carefully and monitor fish or shrimp behaviour while adjusting the CO2 rate.
Buying Note
Choose the correct size, model or quantity before checkout. For best results, match the product with your aquarium size, livestock type and maintenance routine.




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