Build Your Own Planted Aquarium Nano CO2 Kit!

Customize a CO2 system to perfectly suit your planted tank. Start with the Ultum Nature Systems Micro CO2 Regulator or Mini Dual Stage Regulator, then choose from our recommended and most popular cylinders, diffusers, tubing, and accessories to create a setup fit for your aquascape.

Designed for simplicity, this aquascaping kit works for freshwater planted tanks up to 20 gallons, ensuring safe, consistent, and reliable CO2 delivery for healthy aquatic plants and improved aquarium health. Still not sure if you want to build from scratch? Check out our convenient, prebuilt CO2 system kits that take out the guesswork and get you started right away.

How to use a drop checker for monitoring CO2 levels in your planted tank: