Hi, I took the steel top off (the mouth end) my nautilus glass 10ml tank to clean it and now i cannot get it back on straight. I've been trying for 30 mins to get it on straight but it's always off straight. This means that when I try to attach it to the bottom of the tank it cannot screw in because it's off center.
Is there some trick to get the glass (internal thread) to screw on correctly? some pics below