Pressurized CO2

[cbster]

I'm kinda confused on the whole system. I already have the tank full of CO2 and i have been looking at combo packs with regulators, needle valves, bubble counters, and automatic ph shut off stuff on http/www.co2-canisters.com/ and I was just wondering what do i really need for a 55 gallon heavily planted tank?

Thanks Greg

 

[Loveless]

get better lighting a try in addition to plant fertilizer 1st