Planted Aquarium CO2 Cylinders
CO2 Cylinders for Planted Aquariums
Every planted aquarium has different CO2 needs. Whether you’re looking for the simplicity of a DIY system, the convenience of disposable cartridges, or the longevity of refillable cylinders, compare the options below to determine which is right for your setup.
| Feature | Neo CO2 Kit | UNS CO2 Cartridge | UNS Paintball Cylinder | UNS Cylinder Pro |
|---|---|---|---|---|
| Best For | Beginners | Nano aquariums | Small to medium aquariums | All aquariums |
| CO2 Type | DIY | Pressurized | Pressurized | Pressurized |
| Refillable | Powder refill | No | Yes | Yes |
| Compatible Regulators | Standalone | UNS Micro UNS Mini |
UNS Micro (w/ adapter) UNS Mini (adapter included) |
UNS Mini (adapter included) UNS Pro (adapter included) |
| Typical Lifespan(*) | Good | Single use | Better | Best |
| Recommended If… | You want a non-pressurized CO2 option | You want the smallest setup | You want a compact refillable system | You want the longest-lasting capacity |
(*) Actual CO2 consumption varies based on aquarium size, plant density, water chemistry, and injection rate.