Accessories Fish Tank CO2 Indicator CO2 Monitor Glass Drop Checker Indicator Monitor CO2 Diffuser

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

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.