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Aquarium Inline Co2 Atomizer Diffuser for Planted Aquarium (16MM Co2)

4.4 4.4 out of 5 stars 105 ratings
$30.00 $3.75 per Ounce
16MM Co2
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Purchase options and add-ons

  • Fits tubing 16mm
  • Less stuff in display tank! more room for your fish and plants
  • Way more efficiency than intank diffuser, extremely low co2 lost
  • Microbubble, allows plants to easily absorb CO2 to perform photosynthesis
  • Suggestion: you should have your co2 on 1 hour before light

Customer ratings by feature

Sturdiness
4.7 4.7
Value for money
4.4 4.4
Suction power
3.6 3.6
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Frequently bought together

Aquarium Inline Co2 Atomizer Diffuser for Planted Aquarium (16MM Co2)
$30.00 ($3.75/Ounce)
Get it May 9 - 13
In Stock
Ships from and sold by Aqualexs.
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Glass CO2 Drop Checker – CO2 Monitor Kit for Aquarium Tank – Functional and Reliable – Transparent Drop Checker, 4dkh/pH Reag
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Aquarium Inline Co2 Atomizer Diffuser for Planted Aquarium (16MM Co2)

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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Package Dimensions ‏ : ‎ 7.09 x 3.62 x 1.61 inches; 5.04 ounces
  • Date First Available ‏ : ‎ August 29, 2018
  • Manufacturer ‏ : ‎ Aqualexs
  • ASIN ‏ : ‎ B07GXJQ916
  • Customer Reviews:
    4.4 4.4 out of 5 stars 105 ratings

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Product Description

Aquarium Inline co2 diffuser for planted tank

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Aquarium Inline Co2 Atomizer Diffuser for Planted Aquarium (16MM Co2)
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Price$30.00$16.99$24.99$18.99$28.99$29.99
Delivery
Get it May 9 - 13
Get it as soon as Saturday, May 11
Get it as soon as Saturday, May 11
Get it May 16 - 30
Get it May 10 - 13
Get it May 10 - 13
Customer Ratings
4.44.4 out of 5 stars105
4.24.2 out of 5 stars3
4.54.5 out of 5 stars52
5.05.0 out of 5 stars2
5.05.0 out of 5 stars5
5.05.0 out of 5 stars5
Sold By
Aqualexs
DONGKER US
Clscea
DONGKER US
Jungle Aquashrimp
Jungle Aquashrimp

Customer reviews

4.4 out of 5 stars
4.4 out of 5
105 global ratings

Customers say

Customers like the performance, sturdiness, value, and bubbles of the pet supplies. For example, they mention it works well, provides better CO2 distribution, and is well made. Some appreciate the super fine mist of bubbles that wander around their tank. That said, some complain about the leakage.

AI-generated from the text of customer reviews

8 customers mention8 positive0 negative

Customers are satisfied with the performance of the pet supplies. They mention that it works very well, performs at par with other prominent brands, and gets the job done perfectly.

"Great design to get CO2 into a tank. No issues. Set up did not take long" Read more

"...sure I put the gasket where it belong and viola, 0 leaks and works very efficiently...." Read more

"...mist, I am still very much content with this one as it gets the job done perfectly...." Read more

"Works pretty well make sure you have a lot of line after the diffuser." Read more

6 customers mention6 positive0 negative

Customers are satisfied with the co2 distribution of the pet supplies. For example, they mention it's an excellent in-line CO2 diffuser that provides better distribution throughout the tank. They also appreciate the great design and say it atomizes the CO2 quite well.

"Great design to get CO2 into a tank. No issues. Set up did not take long" Read more

"...This provides MUCH better CO2 distribution throughout the tank. And no more foamy mess on the surface!..." Read more

"...I finally just used hose clamps to secure tubing. Seems to atomize the CO2 quite well" Read more

"Awesome product! Very sturdy and well made. Minimalistic presence. Been looking for one of these for quite a while...." Read more

6 customers mention6 positive0 negative

Customers are satisfied with the sturdiness of the pet supplies. They mention that it is well-made and sturdy. Some customers also say that the quality looks and feels great.

"...It's made of both metal and plastic with VERY sturdy construction. I give this in-line diffuser my strongest recommendation…worth every penny." Read more

"Diffuser appears well made and is quite compact. The only issue I had was that my 12/16 eheim tubing would not fit into the screw caps...." Read more

"Awesome product! Very sturdy and well made. Minimalistic presence. Been looking for one of these for quite a while...." Read more

"...I found the quality to be very good." Read more

4 customers mention4 positive0 negative

Customers appreciate the value of the pet supplies. They say it's an excellent diffuser for a good price, and worth every penny.

"...I give this in-line diffuser my strongest recommendation…worth every penny." Read more

"...Been looking for one of these for quite a while. Much cheaper than other prominent brands and performs at par...." Read more

"Excellent diffuser for a good price..." Read more

"Worth the money..." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the bubbles produced by the pet supplies. They mention that it produces a super fine mist of bubbles that wander around their tank. Some customers also say that the diffuser produces very fine bubbles barely visible coming out of their aquarium spray bar.

"...The diffuser produces very fine bubble barely visible coming out my aquarium spray bar, which is FAR superior to the in-tank ceramic CO2 diffuser I..." Read more

"...I get a super fine mist of bubbles that wander around my tank. 1.5bps into this diffuser on my 75g gives me 30ppm co2...." Read more

"...a bit over 2 months now, and it’s still working as intended, producing fine CO2 bubbles...." Read more

3 customers mention0 positive3 negative

Customers are dissatisfied with the leakage of the pet supplies. They mention that the plastic and metal parts end up getting a leak. The connection to the Co2 is leaking water and Co2 through a slow drip, and the o-rings all of which will leak air if over tightened.

"...the rubber gaskets between the plastic and the metal and ended up getting a leak...." Read more

"...There are three o-rings, all of which will leak air if over tightened...." Read more

"The connection to the Co2 is leaking water and Co2 through a slow drip...." Read more

EXCELLENT In-Line CO2 Diffuser!
5 Stars
EXCELLENT In-Line CO2 Diffuser!
I bought this in-line CO2 Diffuser after reading many positive reviews on Amazon Prime and a few aquarium blogs. I purchased the 16-22mm version which I'm using with 5/8" ID OASE canister tubing. The 5/8" ID tubing fit on the diffuser perfectly. I placed the 5/8" tubing in hot water for 15 seconds to help get it on the two diffuser fittings...but I think I could've gotten it on without doing that. As mentioned in other reviews, the two included grey locking screw-down nuts will NOT fit over the tubing once on the diffuser, so I used #6 stainless steel hose clamps instead, which I prefer anyway. I used black CO2-proof 3/16" ID rigid tubing for the CO2 line purchased on Amazon Prime which worked great. I heated that too because that CO2 tubing is VERY rigid, much like RO/DI tubing. I run the CO2 feed pressure at about 40 PSI, but I'm sure it'll work just fine at a lesser pressure. The diffuser produces very fine bubble barely visible coming out my aquarium spray bar, which is FAR superior to the in-tank ceramic CO2 diffuser I was using previously. This provides MUCH better CO2 distribution throughout the tank. And no more foamy mess on the surface! All my plants seem to be doing great and growing like mad. It's made of both metal and plastic with VERY sturdy construction. I give this in-line diffuser my strongest recommendation…worth every penny.
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Top reviews from the United States

Andrew. M
5.0 out of 5 stars Great way to get CO2 in tank
Reviewed in the United States on February 27, 2024
Size: 16MM Co2Verified Purchase
Great design to get CO2 into a tank. No issues. Set up did not take long
Helpful
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Jim D
5.0 out of 5 stars EXCELLENT In-Line CO2 Diffuser!
Reviewed in the United States on February 13, 2021
Size: 16MM Co2Verified Purchase
I bought this in-line CO2 Diffuser after reading many positive reviews on Amazon Prime and a few aquarium blogs. I purchased the 16-22mm version which I'm using with 5/8" ID OASE canister tubing. The 5/8" ID tubing fit on the diffuser perfectly. I placed the 5/8" tubing in hot water for 15 seconds to help get it on the two diffuser fittings...but I think I could've gotten it on without doing that. As mentioned in other reviews, the two included grey locking screw-down nuts will NOT fit over the tubing once on the diffuser, so I used #6 stainless steel hose clamps instead, which I prefer anyway. I used black CO2-proof 3/16" ID rigid tubing for the CO2 line purchased on Amazon Prime which worked great. I heated that too because that CO2 tubing is VERY rigid, much like RO/DI tubing. I run the CO2 feed pressure at about 40 PSI, but I'm sure it'll work just fine at a lesser pressure. The diffuser produces very fine bubble barely visible coming out my aquarium spray bar, which is FAR superior to the in-tank ceramic CO2 diffuser I was using previously. This provides MUCH better CO2 distribution throughout the tank. And no more foamy mess on the surface! All my plants seem to be doing great and growing like mad. It's made of both metal and plastic with VERY sturdy construction. I give this in-line diffuser my strongest recommendation…worth every penny.
Customer image
Jim D
5.0 out of 5 stars EXCELLENT In-Line CO2 Diffuser!
Reviewed in the United States on February 13, 2021
I bought this in-line CO2 Diffuser after reading many positive reviews on Amazon Prime and a few aquarium blogs. I purchased the 16-22mm version which I'm using with 5/8" ID OASE canister tubing. The 5/8" ID tubing fit on the diffuser perfectly. I placed the 5/8" tubing in hot water for 15 seconds to help get it on the two diffuser fittings...but I think I could've gotten it on without doing that. As mentioned in other reviews, the two included grey locking screw-down nuts will NOT fit over the tubing once on the diffuser, so I used #6 stainless steel hose clamps instead, which I prefer anyway. I used black CO2-proof 3/16" ID rigid tubing for the CO2 line purchased on Amazon Prime which worked great. I heated that too because that CO2 tubing is VERY rigid, much like RO/DI tubing. I run the CO2 feed pressure at about 40 PSI, but I'm sure it'll work just fine at a lesser pressure. The diffuser produces very fine bubble barely visible coming out my aquarium spray bar, which is FAR superior to the in-tank ceramic CO2 diffuser I was using previously. This provides MUCH better CO2 distribution throughout the tank. And no more foamy mess on the surface! All my plants seem to be doing great and growing like mad. It's made of both metal and plastic with VERY sturdy construction. I give this in-line diffuser my strongest recommendation…worth every penny.
Images in this review
Customer image Customer image Customer image Customer image Customer image
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8 people found this helpful
Helpful
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JBanker
4.0 out of 5 stars Compact size
Reviewed in the United States on February 24, 2021
Size: 12-15mmVerified Purchase
Diffuser appears well made and is quite compact. The only issue I had was that my 12/16 eheim tubing would not fit into the screw caps. This is probably because the tubing is somewhat old and not as pliable as new. I finally just used hose clamps to secure tubing. Seems to atomize the CO2 quite well
One person found this helpful
Helpful
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Saburezeq
5.0 out of 5 stars Very nice, don't do what I did.
Reviewed in the United States on April 17, 2019
Size: 16MM Co2Verified Purchase
As soon as I got it, being the tinkerer that I am, I opened every nook and crevice to inspect it. Little did I know, I misplaced the rubber gaskets between the plastic and the metal and ended up getting a leak. I had to disassemble it again and make sure I put the gasket where it belong and viola, 0 leaks and works very efficiently.

I get a super fine mist of bubbles that wander around my tank. 1.5bps into this diffuser on my 75g gives me 30ppm co2.

10/10 would buy, tinker, mess up, tinker, be happy, review again!
4 people found this helpful
Helpful
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Samit
5.0 out of 5 stars Very pleased
Reviewed in the United States on May 31, 2019
Size: 12-15mmVerified Purchase
Awesome product! Very sturdy and well made. Minimalistic presence. Been looking for one of these for quite a while. Much cheaper than other prominent brands and performs at par. Having used inline atomic diffuser from GLA before which produce much finer mist, I am still very much content with this one as it gets the job done perfectly. I haven't seen any replacement ceramic parts from this company yet, but hopefully they sell them soon. Overall a very good purchase. This product definitelydeserves more stars...
Customer image
Samit
5.0 out of 5 stars Very pleased
Reviewed in the United States on May 31, 2019
Awesome product! Very sturdy and well made. Minimalistic presence. Been looking for one of these for quite a while. Much cheaper than other prominent brands and performs at par. Having used inline atomic diffuser from GLA before which produce much finer mist, I am still very much content with this one as it gets the job done perfectly. I haven't seen any replacement ceramic parts from this company yet, but hopefully they sell them soon. Overall a very good purchase. This product definitelydeserves more stars...
Images in this review
Customer image
Customer image
3 people found this helpful
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M
5.0 out of 5 stars Works Well
Reviewed in the United States on February 19, 2023
Size: 12-15mmVerified Purchase
Have had it running for about a month now and it’s been doing a phenomenal job with diffusing my CO2 throughout my entire tank. Very happy with it.
One person found this helpful
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Dmytro S.
4.0 out of 5 stars Mostly metal.
Reviewed in the United States on April 1, 2019
Size: 16MM Co2Verified Purchase
The strongest out of all the online diffusers. Replaceable cartridge. I have tried them all. The threaded nuts did not attach to my Fluval hose adapters so I used standard hose clamps.
3 people found this helpful
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Gregg
5.0 out of 5 stars Excellent diffuser for a good price
Reviewed in the United States on March 31, 2021
Size: 16MM Co2Verified Purchase
This is a great diffuser. I replaced with it my previous in-line diffuser that was more expensive than this one and I had a weak diffusion rate, and yes it was clean. CO2 from this one creates bubbles so small it looks like a smoke. CO2 dissolves rapidly and the only bubbles present in my tank is O2 from my plants. Plants started growing much faster and look much better despite the fact that my drop checker was green when I was running the old diffuser. It goes to show you that the color of the drop checker doesn't really mean squat. I had my doubts getting it because of the lower price but I was very pleasantly surprised. I found the quality to be very good.
4 people found this helpful
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Top reviews from other countries

justin valiquette
4.0 out of 5 stars Amazing..
Reviewed in Canada on March 12, 2023
Size: 12-15mmVerified Purchase
The media could not be loaded.
 I am extremely happy with the quality and performance of this diffuser. As you can clearly see in the video it provides micro co2 bubbles...I had no issues setting it up and it has been performing perfectly now for two months.
Would highly recommend.
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