Build Your Own Nano CO2 Kit
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:
1.
CO2 Regulator
required Step 1 CO2 Regulator. This step is required
UNS Micro CO2 Regulator
UNS Mini CO2 Dual Stage Regulator
2.
CO2 Cylinder
required Step 2 CO2 Cylinder. This step is required
CO2 Replacement Cartridge
- Sold out
Single Cartridge (95g)
UNS CO2 Paintball Cylinder
- Sold out
16 OZ
UNS CO2 Paintball Cylinder
24 OZ
UNS Micro CO2 Paintball Cylinder Adapter
3.
Diffuser
required Step 3 Diffuser. This step is required
UNS CO2 Diffuser
Aquario Neo CO2 Diffuser - Normal Special
Aquario Neo CO2 Diffuser - Normal Original
Twinstar CO2 Diffuser
CO2 Inline Atomizer Diffuser
UNS Pro Inline CO2 Diffuser
4.
Tubing
required Step 4 Tubing. This step is required
Ultum Nature Systems Pro CO2 Tubing
CO2 Pressure Proof Tubing
- Sold out
5.
Accessories and Extras
optional Step 5 Accessories and Extras. This step is optional
UNS CO2 Push Fitting Set
UNS Micro CO2 Bubble Counter
UNS Micro CO2 Solenoid
UNS Pro Check Valve
UNS Drop Checker
Aquario Neo Clip
Aquario Neo Booster Tropical Ammonia & Nitrate Reducer
Reviews by real customers
Shipping, Returns and Refunds
Shipping
Orders are typically processed within 1-2 business days M-F. However, additional time may be required during peak seasons and federal holidays. For orders containing live plants, we exercise extra caution and assess factors such as travel distance and weather to ensure safe transit.
To avoid delays, please ensure all order information is accurate and complete. We cannot offer refunds and are not responsible for orders shipped to incorrect addresses due to errors in provided information. Once an order has been shipped, delivery times are determined by the carrier and are outside of our control. On average, shipments arrive within 2–5 business days, excluding weekends and holidays. For more information, please visit our FAQ page.
Returns
If you are not satisfied with your purchase, please contact us within 48 hours of delivery. Approved returns must be shipped back within 14 days of approval. Returned items must be unused, unopened, and in their original packaging. Specific return requirements, if applicable, will be listed on the product’s page. For more information, please visit our FAQ page.
Refunds
No worries, we’ll take care of everything as long as it fits the guidelines above.Most answers to general questions can be found on our FAQ page.