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

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

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.