Thanks for all that, I do have just the glass tanks. Never mind, I'll try the double pliers. Would you try the freezing with glass? Jeff had a go at them, he couldn't open them either. So it's not a strength thing. Maybe it is a vacuum effect, I'm careful not to overtighten, after I broke one a while back. But I do vape them till they are pretty empty. At worst I'll have to chuck em, and consider it a learning experience.
That is a great price, 2legs, I just grabbed 2 sub tank minis, my local guy had them at 16.95aud. But I still want to have a couple of nautilus(nautili?), I like them for my istick, and sometimes with my subox mini. Love the capacity if I'm going out. By the time I convert that sale price, I'm at 26$au, plus 20 for shipping. So ...,but thanks for the thought.
And I appreciate the kind thoughts and hugs over Hopi the dog. We are missing her.