These beautifully styled spiral diffusers look like something from a mad scientist’s laboratory, and certainly create a focal point for aquarium. You can see the CO2 spiralling up the coils inside diffuser, creating a memorising effect.

The diffuser also has an attractive petal rim, making this as much of a design feature as providing practical function.

Instructions

• The item is made from glass it is inherently delicate, and extra care needs to be taken when fitting it. It is highly recommended that the tubing is first warmed in freshly boiled water to soften the tip when pushing onto the diffuser inlet.
• Position just above substrate below the filter outflow. This will ensure the bubbles enter the flow of water from the filter and hold the CO2 in suspension for longer, increasing CO2 diffusion levels.
• When the diffuser is first connected you may find the CO2 escapes from a small hole at the bottom of the spirals.