So after changing my o rings for the first time I have noticed that it’s harder to open & close the holes on my tank. I have a Nautilus 2 but I figure the set-up is similar to most other tanks. I made sure to clean, rinse & dry the tank well. I checked that everything was on right before reassembling. So I guess I’m asking is this normal? Do things have to wear in a bit before parts move easily? I have also had a few leaks too which could have been due to air getting in as I didn’t want to over screw the tank right down. Any thoughts would be appreciated.