Ensure the best water condition for your pet fishes with this Glass Co2 Indicator Aquarium with Suction! It is easy to use and very practical! All you have to do is mount this device on the inside of your fish tank using the suction cup it comes with. The bulb holds C02 and it indicates the levels by means of changing color. Blue means low, yellow means high, and green means there just enough CO2 in the water. Also, it is of high borosilicate glass which is non-toxic and durable.






Glass Co2 Indicator Aquarium with Suction
$14.11
- This Co2 Indicator is a must-have device for all fish tanks; it is easy to use, and practical as it requires no batteries or charging at all
- Made of high borosilicate glass that is durable, non-toxic, and easy to clean
- Easy to use; just mount it inside the fish tank using the suction cup it comes with and it will show the CO2 levels in the water by means of changing color





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