PH Accessories Tester Monitor Indicator Monitor CO2 Diffuser CO2 Monitor Glass Drop Checker

Label:Yes Size:As picture show Product: Aquarium CO2 Indicator Test solution capacity: 15ml Package included:1 bottle x Indicator solution or 1 glass drop checker Condition:100% Brand New,High Quality For: Aquarium plants grass Model: Musical note/Ball/Water drop/Hook Materials:Borosilicate Glass

Features 1. The change of the three colors of the detection fluid indicates the CO2 concentration of the fish tank. 2. The indicator made of glass is corrosion-resistant, simple and beautiful. 3. There are 4 types of glass drop checkers for you to choose.

Notes: 1.The test solution should be replaced once a month. 2. Please allowed 1-3mm differences due to manual measurement, thank you for your understanding! 3. Due to the difference between different monitors, please understand that the picture may not reflect the actual color of the item.