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Aquarium Supplies
Home » Saltwater Aquarium Supplies  » CO2 Products  » CO2 Indicator Solution  »  Azoo CO2 Indicator
Azoo CO2 Indicator

Azoo CO2 Indicator

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Azoo CO2 Indicator Information

The AZOO CO2 Indicator can constantly monitor the CO2 level in water plant aquariums. The CO2 level should be tested continually to ensure an optimum living envitorment for water plants.

Manufacturer Info

Azoo Aquarium Supplies
The Azoo brand was founded in 1990 by the Taikong Corporation of Taiwan. The “A” in Azoo stands for grade “A” aquarium products and accessories. The company’s philosophy is to create all of the products necessary for aquarium hobbyists to enjoy their ecological pastime in their home or office. Azoo manufactures a wide range of nature, reef, garden and palm aquarium supplies and distributes them to more than 70 countries around the world. Azoo’s research and development team is constantly developing and testing new aquarium products in their laboratories. We carry a variety of Azoo aquarium parts, from fish tanks and heaters to lighting and UV sterilizers.

Azoo CO2 Indicator Reviews

Average Rating
(7 reviews)
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Azoo CO2 Ind

Reviewers Rating Unsatisfactory

Posted: 11/29/2010 from ALLENTOWN, PA UNITED STATES
1.0 5
Experience Level: Expert

Comments: At less than 1/2 the price of the Red Sea....and the simplicity of the device, I figured why pay more. I ordered 2. The first one, the O-ring tore on the initial removal of the top, and a section of the O-ring tore away as I very carefully tried to reassemble. With a section of O-Ring missing, the unit leaked out its contents, in addition to the suction cup not holding.The second unit, the O-Ring stayed intact, but the suction cup failed 3 times in less than an hour......The website staff was excellent and refunded me for the defective product.My advice, don't buy them. I am getting the Red Sea Indicators....hopefully they are much better.

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Less than mediocre

Reviewers Rating Unsatisfactory

Posted: 7/29/2010 from RIVERSIDE, CA UNITED STATES
1.0 5
Experience Level: Expert

Comments: Don't waste your money. Instructions are too vague and it still doesn't really work. Better to just find a CO2 calculator online that determines it from the pH and Alkalinity reading (this only works if you don't use phosphate buffers such as pH Up and pH Down).

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Seems to Work

Reviewers Rating Great

Posted: 2/25/2010
4.0 5
Experience Level: Beginner

Comments: I recently set up my pressurized CO2 system but wasn't getting a high level of pearling on leaves. I purchased the CO2 indicator to test whether the levels were right. After a couple of hours, I checked the indicator and I was getting a teal color so I increased CO2 flow a little. Very quickly my plants were bubbling and I have noticed a lot of new growth. The only thing that concerns me is that I have recently read you should not use aquarium water for filling drop checkers due to inaccurate readings. dkH is supposed to be used. Since I'm a novice, maybe the Azoo folks know better about what they are doing? At any rate, the product seems to work based on how my plants are responding.

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Works like a charm!

Reviewers Rating Excellent!

Posted: 12/25/2009 from Vancouver, WA UNITED STATES
5.0 5
Experience Level: Intermediate

Comments: I was a little skeptical about whether or not this would work as well as I'd hoped. It definitely has. Price was great for this quality of a product. Highly recommended.

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not bad

Reviewers Rating Average

Posted: 2/18/2009 from EUCLID, OH UNITED STATES
3.0 5
Experience Level: Beginner

Comments: The product works good as far as telling how much co2 is in the tank, but I had to put a small dab of silicone on the suchion cup to keep it stable and not fall to the bottom of the tank

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Great CO2 Checker

Reviewers Rating Excellent!

Posted: 7/12/2008 from PELION, SC UNITED STATES
5.0 5
Experience Level: Beginner

Comments: This product is very simple to use and very effective. Now I can tell how my CO2 level is with just a glance.

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Azoo CO2 Indicator

Reviewers Rating Excellent!

Posted: 2/13/2008 from SANDY, OR UNITED STATES
5.0 5
Experience Level: Intermediate

Comments: It seems to work very well. It is less expensive than atlease one other and no membrane. Just don't fill it too much. The instructions are on the box but the contrast is poor -- red background with black text.

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June 23, 2014
"Great company! Items where extreme top quality, not a problem with any of them. Definitely a lifetime buyer of this site."

June 17, 2014
"I place my order and 5 hours later I received a notification that it had shipped."

June 16, 2014
"They have the best on-time delivery and prompt service of all the other similar websites I have used. Recommend them highly."