CO2Art
A British company that does one thing: pressurised CO2 for planted aquariums. The line runs from compact single stage units up to the Pro Elite dual stage regulators, with a machined needle valve, an integrated solenoid and a bubble counter with a built in check valve. Manifold blocks are the clever part, several can be stacked on one Pro Elite so a single cylinder feeds five tanks or more. Separate stores serve the United States and Europe, and returns go through support by email rather than a form maze.
Worth the money for a scape that will grow into a second or third tank, or for anyone who wants stable output as cylinder pressure falls. Budget keepers with one nano will find cheaper hardware that does the job. Check the cylinder thread before ordering, since North American and European fittings differ.
Pros
- Dual stage output stays steady as pressure drops
- Manifold blocks feed several tanks at once
- Solenoid and bubble counter included
- Separate US and EU stores with local shipping
- Support handled directly by email
Cons
- Costs more than generic online regulators
- Extra manifold blocks are sold separately
- Thread fitting differs by region, check first
- Popular models go out of stock
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