Dymax CO2 Tablets 20 Pack offer a convenient and easy way to supply carbon dioxide to planted aquariums. Once added to water, the tablets release CO2 to support plant photosynthesis, improve growth, and enhance overall aquascape health. Ideal for low-tech setups and beginner aquarists, they help maintain a balanced aquarium environment while reducing algae competition. Suitable for freshwater planted tanks, these tablets provide a simple alternative to pressurized CO2 systems, making plant care easier and more accessible.