Mixer M CO₂ Reactor – CO₂ reactor

The NEO Mixer M is a CO2 reactor for keepers of planted aquariums up to 250 l who run CO2 through an external filter. It mounts on the filter's outlet tube, so the gas is dissolved as the water leaves the filter, and it is designed to reduce CO2 loss.

Why it matters

• A ceramic fibre diffuser sits on the outlet tube and releases CO2 into the water flowing through the filter.
• The round outlet nozzle sets the water into a swirling motion, which the manufacturer states increases CO2 solubility.
• The body is fully transparent, so you can see the flow and check the reactor during operation.
• The diffuser can be replaced separately. The manufacturer recommends replacement after about 2 years of use, and the NEO Diffuser Tiny is sold as a spare.

Specifications

• Brand: NEO MEDIA
• Model symbol: NEO MIXER M
• EAN: 8809702871107
• Aquarium capacity: up to 250 l
• Weight: 0.05 kg
• Elbow outer diameter: 15 mm
• Elbow inner diameter: 13 mm
• Hose size: 12/16
• Compatible filter brands listed by the manufacturer: SunSun, Oase, Aquael, BOYU, Tetra, Eheim, JBL
• Dedicated outlet: Aquario NEO FLOW M

What it works with

The reactor is intended for freshwater planted tanks with external filters and CO2 injection, up to 250 l. Before ordering, measure the outer and inner diameter of your outlet tube, since the elbow is sized for 15 mm outer and 13 mm inner diameters. The NEO Skimmer can be attached to the same construction, but it is sold separately.