CO2 plays an indispensable role to the photosynthesis of aquatic plants?? but the aquarium can not provide a genuine environment for plants' growing?? so it comes even important for adding adequate amount of CO2 to the aquarium.

• Feature: Easy operations?? great DIY enjoyment?? perfect CO2 generator
• Pressurized CO2 System Includes: Caps?? needle valve?? 3-way connector?? check valve?? tubing?? pressure gage
• Equipment Required: 2 x carbonated beverage bottles?? reaction material and diffuser (need prepared by users)
• Recommended Reaction Material: Baking"c acid / alum+baking soda / acetic acid+baking soda?? etc

Example of Mat