Shopping Cart

Your cart is empty.

Your cart is empty.

Pawfly Glass CO2 Drop Checker for Aquarium CO2 Indicator for Planted Fish Tank CO2 Monitor Kit with Solution & Suction Cups CO2 Detector Aquarium CO2 Tester Fish Tank Carbon Dioxide Checker

5.0 (3) Write Review
Free shipping on orders over $29.99

$9.99

$ 4 .99 $4.99

In Stock
  • Complete CO₂ Monitor Kit: Everything you need for precise CO₂ monitoring! Include curved glass tubing, a bottle of reagent solution, and 2 suction cups. Effortlessly keep track of the CO₂ level in your planted aquarium right at home
  • Easy to Use: Simply add 20 drops of reagent into the tubing, and attach it vertically to your tank wall using a suction cup. (NOTE: The tubing opening must face down!) Accurate results will appear in about 2 hours. Extremely convenient and time-saving
  • Simple Result Interpretation: Instant analysis at a glance through the reagent’s color changes – Green or Light Green indicates perfect CO₂ balance; Yellow warns of excessive CO₂; Blue signals insufficiency of CO₂. No more guesswork in tank care
  • Safe & Reliable: Made of thick, smooth glass, the CO₂ drop checker won’t crack easily or scratch the delicate skin of your fish. Ultra-clear design ensures easy color reading. The strong suction cups provide secure, stable mounting at all times
  • Essential CO₂ Indicator: A must-have for serious planted tank enthusiasts and aquarium professionals. Effectively help maintain optimal plant growth and fish vitality. Create your thriving underwater paradise with confidence


Product Description

2080
2080
2080
2080

Dianelys
Reviewed in the United States on May 2, 2025
It works
J. Hamilton
Reviewed in the United States on April 16, 2025
a drop checker same as all the others, Works as it should, and the price is good.
Kevin
Reviewed in the United States on April 13, 2025
This co2 monitor for the fish tank is easy to install and read. I had to use something to push the indicator fluid through the glass opening as the drops were not fluid enough to freely flow. I'll probably have to do the same to empty it to put fresh fluid in. Otherwise I can easily see the reading and it isn't an eyesore on my tank.
Recommended Products
New Life Spectrum Large 300g (Naturox Series)

$18.98

$ 8 .99 $8.99

5.0
Select Option
ProLab Radon in Water Test Kit. Emailed Results Within 1 Week. Includes Lab Fees & Return Mailer, 1.8 Ounce

$49.99

$ 25 .99 $25.99

4.6
Select Option
Salifert AMPT Ammonia Test Kit

$14.46

$ 7 .99 $7.99

4.4
Select Option
Hagen Calcium Test Kit for Fresh & Saltwater

$22.99

$ 10 .99 $10.99

4.5
Select Option
sera Nitrate-Test (No3) 15 Ml, 0.5 fl.oz Aquarium Test Kits

$17.99

$ 8 .99 $8.99

4.6
Select Option
Monitor Ammonia Test KIT (150 Tests) - Monitor Aquarium and aquaculture Water Quality

$14.30

$ 7 .99 $7.99

4.5
Select Option
WQ105 WTR Quality Test Kit,

$9.08

$ 3 .99 $3.99

4.7
Select Option
Monitor Calcium/Magnesium, Alkalinity Test KIT for Coral & Reef_Combo Set

$24.50

$ 11 .99 $11.99

4.5
Select Option