I just got a new eleaf Ijust 2 tank like a week ago and the first coil lasted for atleast 5 days. Which Is when I ran out of the ejuice I had and decided to try something new. now my coils don't even last one tank. I don't know if its the ejuice or if im just doing something wrong. im also using a eleaf istick 50w with this tank. Does anyone have any ideas as to why this is happening?