Inline CO2 Diffuser

A must-have for any planted aquarium. Simply install the DALUA CO2 inline diffuser onto your filter hose output. This will perfectly distribute CO2 throughout your entire aquarium and keeps your main display free from any visible CO2 diffuser.

Comes in 2 sizes, 12/16mm hose and 16/22mm hose.

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Q: What is an Inline CO2 Diffuser used for?

A: An Inline CO2 Diffuser is designed to dissolve CO2 directly into the water flowing through your filter hose, providing efficient CO2 delivery for planted aquariums.

Q: How is an inline diffuser different from an in-tank diffuser?

A: Inline diffusers are installed outside the aquarium on the filter tubing, keeping equipment out of sight while often delivering cleaner aesthetics and highly efficient CO2 dissolution.

Q: What type of aquariums is this suitable for?

A: It is ideal for planted freshwater aquariums, aquascapes, and high-tech tanks using a canister filter or external filtration system.

Q: Will this help plant growth?

A: Yes, stable and efficient CO2 injection can significantly improve plant growth, colouration, density, and overall health when combined with proper lighting and nutrients.

Q: Does an inline diffuser reduce visible equipment inside the tank?

A: Yes, because it is installed externally on the hose line, it helps keep the display tank clean and uncluttered.

Q: Is it compatible with all filters?

A: It is compatible with many canister filters and external systems, provided the hose size matches the diffuser fittings.

Q: How do I choose the right size?

A: Select the model that matches your filter hose diameter to ensure a secure fit and optimal water flow.

Q: Is it easy to install?

A: Yes, it is typically installed by cutting into the return hose line and securing the diffuser between hose sections.

Q: How often should I clean the diffuser?

A: Cleaning is recommended whenever CO2 mist output decreases or buildup appears, often every few weeks depending on usage.

Q: Is it safe for fish and shrimp?

A: Yes, when CO2 levels are properly monitored and adjusted, it is safe for aquarium livestock.

Q: Will it create microbubbles in the tank?

A: Some fine mist or microbubbles may be visible, which is normal and often indicates efficient CO2 diffusion.

Q: Can beginners use an inline diffuser?

A: Yes, especially if they want a cleaner-looking aquascape and already use an external filter system.