GD-12 Glass CO2 Aquarium Diffuser Screw Type Traight Port Diffuse Atomizer

Description: GD-12 Glass CO2 Aquarium Diffuser Screw Type Traight Port Diffuse Atomizer Specification: Size: 9*2.8cm Material: Glass Color:Transparent Features: - Can be installed anywhere in the aquarium - High quality glass, anti-erode, high transparency - Increase CO2 dissolution to help photosynthesis of plants Instructions: 1.Turn drop checker up-side-down and place 3 drops of test solution into the drop checker. 2.Use a pipette (not include) to inject tank water into the drop checker. 3.You will see the color change on the solution according to Co2 content in the tank water. 4.Turn drop checker up-side-down again carefully, and place the drop checker inside the tank below water level. Package include: 1x CO2 diffuser 1x Suction cup