I need to find a needle valve for my 5 pound CO2 Bottle. I really don't want to spend more than I need any recommendations?
Also I have a solenoid shut-off valve rated to 15 psi that I am thinking on setting up on the low side of my regulator before the needle valve and have it go one and off with the lights. As I am new to planted tanks I would like to hear your opinions on this? In some of the reading I have done the CO2 with the lights out is not necessary.