Cheap pressurized CO2
I got rid of all my tanks except my nanos and I want to put some money into my fluval flora to make it an excellent tank.
I've been using the cartridges but they're a total PITA. I put a diffuser on it and after not using it in months I bombed my tank by starting it up and getting distracted before setting it to an acceptable level.
I have a bubble counter and diffuser in one already. Also have a drop checker.
Whats the cheapest I can get away with while doing the job properly?
I've heard the paintball canisters aren't able to be regulated, is this true? I don't want the same problem as the cartridges.