How many tanks can I use with the Aquarium Co-Op CO2 regulator?
The Aquarium Co-Op CO2 regulator comes with 1 manifold block endpiece and can be expanded with up to 5 manifold block add-ons. This means that you can connect up to 6 aquariums to a single regulator.
For more information, see the manifold block add-on product page, as well as our article on CO2 systems for high tech planted tanks.