I just purchased a new 10lb c02 cylinder and dual regulator off RC some guy had bought it and never used it so i got a good deal on it. I currently have a 10lb cylinder on my reef tank running my ca reactor, but when i bought it i got the miluwakee regulator, needle valve and solenoid all in one, this one just comes with the regulator, i'm actually planning on running this on my freshwater tank for my plants, so i'll probably need a needle valve and bubble counter right ? If so where is the best place to get them from, or can you diy ?