I have 2 of the Smok Osub mini's on the way. They are the osubs that do not have any adjustmets, the mod is just a 1200 mah battery, put a tank on, and it runs off the power of the battery and atomomizer. I am a MTL vapor, so I will not be using the helmet nano tanks that will come with it. The largest tank it can take without over hang in 19mm. I got the silver versions of the mod. I own a couple endura t-18 tanks and am planning on using them as they will fit and should look pretty good on the mod. The only other mtl tanks that seem could and will fit properly is the aspire triton mini and the nautilus mini. I have not used either of these tanks. Just wanted to see if anyone thinks the prizm tank is just as good as the triton mini or the nautilus mini. If anyone thinks its worth buying one of these 2 tanks over the t-18 tanks, please let me know and why. Just want to get the best basic mtl vape that I can. I plan on trying some nic salt juice or using blacknote just for more information.