Aquarium CO2 Indicator Solution Monitor Plants Grass CO2 System Concentration Fish Tank Glass Liquid Tester Fluid Drop Checker

Aquarium CO2 Indicator Solution Monitor Plants Grass CO2 System Concentration Fish Tank Glass Liquid Tester Fluid Drop CheckerDescription Product: Aquarium CO2 Indicator Test solution capacity: 15ml Model: Musical note/Ball/Water drop/Hook For: Aquarium plants grass Note: the test solution should be replaced once a month. Color and co2 concentration: Blue: low concentration of co2, poor aquatic plants, slow growth Green: The concentration of co2 is normal, which guarantees the photosynthesis of plants and the safety of fish and shrimps. Yellow: The concentration of co2 is too high, causing the fish and shrimp to die due to hypoxia. 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 indicators for you to choose. Package include 1 bottle x Indicator solution Or 1 set x Indicator solution