I wouldn't waste my time with that regulator, but that's my personal opinion. If you do buy a cheap Chinese regulator make sure the threads are the right size, the USA uses different threads than the rest of the world. A lot of people have great luck with Milwaukee Co2
MA957 Regulator. If you're willing to spend a little bit more money check out Green Leaf Aquariums, they're the Cadillac of Co2
regulators. I'd recommend getting a regulator with a solenoid on it so you can put your lights and Co2
on timers, so you don't have to manually turn them on and off every day.
Don't put your Co2
line in the canister, it can cause build up in the canister and can reek havoc with your impeller. For diffusion, look into an inline diffuser and put on the exhaust side of your canister filter, they're many options out there or they're relatively easy to build. Make sure you use Co2
rated tubing, regular air line tubing will leak Co2
and become brittle with time.
For parts, I'll go Co2
tank to diffuser. You need a regulator on your tank, needle valve, check valve, bubble counter, check valve, then a diffuser. Here's a picture, it would be essentially the same except I diffuse differently.
Sorry for the long winded post, I hope I explained it well enough. And if you have any questions, don't be afraid to ask.