Dropping pressure on gauge

My gauge on my co2 bottle seems to be fine during the day,i check on it constantly since I just started kegging 2 days ago. My bottle is in the keezer, over night the gauge to my lot keg dropped 2lbs not a whole lot but will that happen and what do I do.

Co2 is like propane and refrigerants, the pressure fluctuates with the temperature. Or you could have a leak.

Well I checked for leaks and didn’t find one. Earlier I checked on it and I herd co2 moving threw the tank, so I moved the keg a little and it stopped.

Might be a tiny leak. Those buggers can be hard to find even with soap.

Sometimes moving a line just a bit will cause/stop a leak.

Do you have shut off valves on each keg? Is so, shut off one keg. Leave the other keg on but turn the valve on the tank off. The low side gauge should still read “xx”. Let it sit over night and see if it drops. Do the same to the other keg the next night to check that line.

Probably just a small leak.
Once you have everything hooked up go through everything and retighten/ and recheck everything.
I had the same issue when I started/or when adding splitters. Once everything chilled down small leaks just rechecked everything and was fine.