Hello, I'm currently in the process of setting up a paintball co2 system for my planted tank. I just connected my regulator to my tank and after adjusting working pressure, and plugging in the solenoid I began to open the needle valve. However, no matter how much I turn the needle valve no bubbles are coming out. My co2 tank is at about 800psi and a working pressure of 35 (both according to the regulator). I have no clue why it's not working. I'm using a GLA GRO PAINTBALL AQUARIUM CO2 REGULATOR.