Co2 Diffuser question

[Kalel]

I just have a quick question about a co2 diffuser. I bought a diffusers for my 30gal aquarium, but the directions said, it can be used in up to a 20gal aquarium, seeing that I have 3diffusers can I connect 2onto my tank, using the same co2 system or do I need two separate systems?? I also couldn't find any diffusers that went over a maximum of 20gal, so I have no choice but to work with those I have. Thanks guys

 

[mohican]

They make diffusers rated over 20 gal. In my opinion, the single 20 gal diffuser should work fine for a 30 gallon tank. I don't think its going to make a real big difference on your system. If you really are serious about running more than one, you should get a splitter manifold where 2 different lines can be run accordingly. This would distribute even amounts of CO2 between both diffusers. You will also need 2 bubble counters as well; I ran into this when I installed a splitter on my 125.