Hey all. I have looked all over for the answer to my question but everything I see is related to either 18mg nicotine or 100mg nicotine concentrate. I have tried to use an e juice calculator but when I enter 6mg as my nicotine concentrate and 6mg as my target, it says impossible to mix? I have a 15 ml bottle of nicotine marked 6mg/ml I’m making a 60ml batch. How much should I add to make a 6mg nic juice? And/Or how much should I add to a 0mg nic bottle of juice if it’s 60ml? Thanks for your help. Also sorry I’m a noob.