Aquarium CO2 Indicator Test Kit Glass Drop Checker, ISTA Solution 10cc Real time for Indicator Drop Checker Long Term Monitor Test - Real time Solution 10ML Aquarium Live Plants - Regulator Solenoid

ISTA CO2 Indicator Solution,

0.34 fl. oz. (10cc) x1 Glass Drop Checker x1 color check sticker x1 Suction cupx1 CO2 Indicator Kit is used to monitor approximate CO2 levels and also helps gauge CO2 levels in aquariums.

The kit includes a 0.34 fluid ounces CO2 Indicator Liquid, CO2 Indicator, and a color check sticker to help gauge CO2 levels.

instrustions:

first, you have to turn the drop checker upside down, add 4 drops of solution and I added enough tank water to fill the bubble half way.

once you turn the drop checker right side up you can place it in your aquarium.

you do not have to lower the water in your tank.

it takes a couple of hours to start working.

once you changed tank's water, pls change the liquid.