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Neo Co2 Diffuser Special (Extend) 3 reviews

by NEO

The Aquario NEO CO2 Diffusor Extended Special Type is an acrylic CO2 Diffusor with an extra long pipe which can be individualized very easily by a special heat technique. Dangling around hoses disappear from your aquarium tank's surrounding and your whole aquarium setup looks organized and tidier than before. The special ceramic membrane produces a fine mist and the CO2 gets dissolved very quickly. The diffusor itself is very narrow and connects to the pipe at its side.


Inside the package you will find two extra pipes of 16cm length which you may use to try this innovative technique before using the actual product. By heating up the pipe the acrylic material becomes flexible. It can then be adjusted to any form you need in your aquarium. Among the product pictures there is a simple summary.

  • Insert the enclosed rubber strip into the acrylic pipe.
  • Heat the pipe with a lighter while rotating at a distance of 1-3 cm.
  • As soon as the acrylic material is softend it can be curved.
  • The beforehand inserted rubber strip minimizes the chance of reducing the inner diameter of the pipe. It can now be removed.
  • For finest bubbles it is advisable to put the diffusor into water for 10 minutes, so that all membrane pores get soked completely.
  • If the bubbles get bigger with time, you can clean the membrane with bleach. You will find a detailed describtion below.

Tips for application:

  • If the flame is too close to the pipe it will get black from soot. Please keep the distance named above.
  • If the pipe is not rotated while heating, the bend will appear unattractive and have overlapping material inside the curve.
  • As soon as the material is softened, it is advisable to act firm and quickly to prevent the material from cooling while adjusting.
  • When aiming at a 180° curve, it is best to move the flame back and forth for a while in order to get a larger soft acrylic area.
  • If you want to bend the pipe around your aquarium tank's wall, you do not necessarily need two bends. Just make use of a 180° curve and hold both pipe ends very tightly to the wall. The 180° will slowly expand adequadly.


Aquario NEO - CO2 Diffusor - Extended Type - Mini
Height 390 mm
Width 24 mm
Membrane diameter 12 mm
Fits hose 6/4 mm

Aquario NEO - CO2 Diffusor - Extended Type - Medium
Height 390 mm
Width 28 mm
Membrane diameter 17 mm
Fits hose 6/4 mm

Aquario NEO - CO2 Diffusor - Extended Type - Large
Height 390 mm
Width 35 mm
Membrane diameter 24 mm
Fits hose 6/4 mm

Customer Reviews
4.3 Based on 3 Reviews
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Filter Reviews:
Anand F.
Singapore Singapore

Neo Diffuser

great for my deep tank, acrylic was easy to shape.

Kelvin T.
Singapore Singapore

A lot harder than advertised...

Bending this is a LOT harder than what the YouTube videos show. My results are not pretty but they work...

Singapore Singapore


Best diffuser from NEO, produce very fine Co2