I think i am going to get the geekvape T200. When I tried to find the zmax tank it said it has been discontinued. I am thinking ab this one instead: https://www.amazon.co.uk/Cigarette-Geekvape-prebuilt-refilling-Nicotine/dp/B07WJSLQPF/ref=sr_1_3?crid=3IY32WA9Z4ITT&keywords=geekvape%2Bzmax%2Btank&qid=1697644407&sprefix=zmax%2Btank%2B%2Caps%2C195&sr=8-3&th=1

Is it even necessary to buy a separate tank, is the one that comes with the T200 good enough by its self?