CO2Art Inline CO2 Aquarium Atomizer Diffuser System
Our inline CO2 diffuser for the outlet hose of an external filter, 12/16 or 16/22 mm, with a replaceable nano-mist ceramic membrane in a crack-resistant metal body. Needs at least 30 psi.
Same-day dispatch on orders before 2 PM CET
Lifetime free technical support
Up to 10-year warranty
Free delivery on orders over €200
CO2Art Inline CO2 Aquarium Atomizer Diffuser System
Real photos and videos from real customers
Tap a photo to see the gear in it — every tile is the customer's own post, credited and linked.
@planted.aquarium.studio
Day 25, now everything seems to be ready for the plants 🤍
#aquarium #aquariumhobby #plantedtank #chihiros #co2art
@chihirosaquaticstudio @co2art @eheim_official @jbl.de
14 August 2026
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@mattmonkey23
🇷🇪 Il est temps de lancer ce magnifique 60P de chez @ona_mauritius , fièrement sponsorisé par @co2art . 🙌
Un immense merci à eux pour leur confiance. Je suis très fier de faire partie de la famille des COArt Artists ! 💚
Ça faisait un moment que je n’avais pas réalisé d’iwagu...🇷🇪 Il est temps de lancer ce magnifique 60P de chez @ona_mauritius , fièrement sponsorisé par @co2art . 🙌
Un immense merci à eux pour leur confiance. Je suis très fier de faire partie de la famille des COArt Artists ! 💚
Ça faisait un moment que je n’avais pas réalisé d’iwagumi… Du coup, j’hésite : partir sur un iwagumi pur et traditionnel ou tenter une version revisitée ? 🤭
J’ai déjà quelques Manten Stone à la maison qui iraient parfaitement dans ce bac, pour les connaisseurs. 🤩
Et vous, vous partiriez sur quelle option ? 💚🌱
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💧Filtration: oasefrance
🌱Plante: aquabon_reunion
🫧CO2: co2art
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#Aquascaping #PlantedTank #NatureAquarium #AquariumLife #iledelareunion
11 June 2026
In this photo
@aquascaping.passion
#aquascaping #aquarium #aqua #aquascape
20 February 2026
In this photo
@aquascaping.passionCelui qui trouve à quoi sert cette objet 👌👌👌#aquascaping #aquarium #aquariophilie #aqua
10 February 2026
In this video
@mjaquascaping
TESTING INLINE CO2 DIFFUSERS SO YOU DON'T HAVE TO
Links to all diffusers below (affiliate links)
Diffuser #1
NL: https://amzn.to/416RpQG
EU: https://amzn.to/439pZfD
US: https://amzn.to/43sQwF5
Diffuser #2
NL: https://amzn.to/3EMliy8
EU: https://amzn.to/41tOnHK
US: https://...TESTING INLINE CO2 DIFFUSERS SO YOU DON'T HAVE TO
Links to all diffusers below (affiliate links)
Diffuser #1
NL: https://amzn.to/416RpQG
EU: https://amzn.to/439pZfD
US: https://amzn.to/43sQwF5
Diffuser #2
NL: https://amzn.to/3EMliy8
EU: https://amzn.to/41tOnHK
US: https://amzn.to/4kf7Hzw
Diffuser #3
NL: https://amzn.to/41uBA7Y
EU: https://amzn.to/3EP1muB
US: https://amzn.to/4h0DrWq
Diffuser #4
NL: https://amzn.to/4kdZyLL
EU: https://amzn.to/3ESV39m
US: https://amzn.to/41rlImq
Diffuser #5
NL: https://bit.ly/41rMz1P 10% OFF WITH CODE ''AMSTERDAM''
EU: https://bit.ly/41rMz1P 10% OFF WITH CODE ''AMSTERDAM''
US: https://bit.ly/4gXpbhg 10% OFF WITH CODE ''AMSTERDAM''
Diffuser #6
NL: https://amzn.to/3Qv9Zgj
EU: https://amzn.to/3ENg9pM
US: https://amzn.to/3QvN1pp
Everything I've used for this setup (affiliate links)
Tank
EU: https://bit.ly/3CP95bj
US: https://bit.ly/3AGgKDL
Cabinet
EU: https://bit.ly/4aOR21r
US: https://amzn.to/4aO0Vg2
TANK + CABINET SET
EU: https://bit.ly/3CMwGJF
Light
EU: https://bit.ly/3CCRK5o
US: https://bit.ly/3Q69IAA
Filter
EU: https://bit.ly/4hna0yF
US: https://amzn.to/4gJxMEh
CO2 regulator
WW: https://bit.ly/3uuAwmp 10% OFF WITH CODE ''AMSTERDAM''
Inline diffuser
WW: https://bit.ly/3Cz8L0r Code ''mjaquascaping'' for a small discount
Flexible filter hose
EU: https://bit.ly/42JX69E
WW: https://bit.ly/40ZLMF0 Code ''mjaquascaping'' for a small discount
Aquario NEO Flow
EU: https://bit.ly/3AL5oyv
US: https://bit.ly/3RsFJkT
Seachem Matrix bio media
EU: https://bit.ly/4hI2mPp
US: https://amzn.to/4jE7F4d
Aquasoil
EU: https://bit.ly/48MzmkQ
US: https://bit.ly/48O3igE
Rocks
EU: https://bit.ly/3Tn0tLX
US: https://bit.ly/48wFChk
Wood
EU: https://bit.ly/4aOce7R
US: https://bit.ly/3PZWSDI
Moss cotton
EU: https://bit.ly/3ECyHIU
Easy life Algexit
EU: https://bit.ly/42FgDrF
US: https://amzn.to/4hMtM6S
APT FIX
WW: https://bit.ly/4gx1ITI 15% off with code ''mjaqua''
Full plant list
Cryptocoryne wendtii 'Red'
Cryptocoryne wendtii 'Green Gecko'
Cryptocoryne
26 February 2025
In this video
@haspek_scaping
Advert
Best inline co2 diffuser 🙌🏻
@co2art
#co2art
Follow for more 👉🏻 @haspek_scaping
#haspek_scaping
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#co2artgear #co2artists #co2artcustomers #co2artist #aquarium #shrimp #animals #relaxing #aquascape #amazing #fishtank #nature #plantedtank #akvaryum ...Advert
Best inline co2 diffuser 🙌🏻
@co2art
#co2art
Follow for more 👉🏻 @haspek_scaping
#haspek_scaping
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#co2artgear #co2artists #co2artcustomers #co2artist #aquarium #shrimp #animals #relaxing #aquascape #amazing #fishtank #nature #plantedtank #akvaryum #homesweethome #natureisbeautiful #freshwateraquarium #co2artinlinediffuser #089scapingcrew
18 December 2023
In this photo
Delivery, support, warranty and how to reach us — the short version. Every link opens the full page.
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Shipping
Free delivery on orders over €200. Orders placed before 2 PM CET usually ship the same day; regulators are assembled and tested first. Fully tracked FedEx delivery: 1–2 business days in Europe, 3–5 worldwide. Delivery details
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Support
Lifetime free technical support on every CO2Art product. Guides, manuals and a ticket form live in the support portal.
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FAQ
Cylinders and connections, bubble rates, drop checkers, what a dual-stage regulator does — the questions we hear most, answered. Read the FAQ
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Contact
Monday to Friday, 9:00–16:00 CET. We reply within one working day. Contact us
Our latest inline CO2 diffuser. It sits in the outlet hose of an external filter, so there is less equipment in the aquarium and a cleaner look — without giving your plants any less CO2.
Features
- Replaceable ceramic membrane
- Two sizes: 12/16 mm and 16/22 mm hose
- Durable, crack-resistant metal body
- Nano CO2 mist membrane
Good to know
This diffuser needs a working pressure of at least 30 psi (about 2 bar). Use CO2-rated tubing only, never silicone: the tubing must be acid-resistant and rated for high working pressure.
Fill the bubble counter with water only — bubble counter fluids and oils contaminate the diffuser.
How a CO2 diffuser works
A diffuser makes the CO2 entering the aquarium easier for plants to take up and wastes less of it. As the gas passes through the porous membrane it breaks into streams of tiny bubbles; with their larger surface area they dissolve readily into the water and raise the CO2 saturation of the aquarium.
Shipping and delivery
Free delivery on orders over €200; otherwise €9.99 in Europe and €14.99 for the rest of the world. Orders placed before 2 PM CET are usually processed the same day — a regulator may need a little longer, because every one is assembled and tested before it ships. Delivery is fully tracked with FedEx: 1–2 business days in Europe, 3–5 worldwide. Customs or import duties outside the EU are charged on arrival. Shipping policy · Returns
Warranty and lifetime support
The Advance Professional and Professional dual-stage regulators carry a warranty of up to 10 years; every other CO2Art product carries the standard 2-year manufacturer's warranty. All customers receive lifetime free online technical support. Warranty terms
Satisfaction guarantee
If you are not satisfied with the quality of a product within 30 days of purchase, we send a full refund or a replacement at no charge. Mechanical defects found during the first year are repaired, with any parts needed, at no cost to you. The guarantee