Well, it's not going to come with it. You can actually attach an ego tank and atomizer to it but, you might need an extension and it won't look as sleek. However, the more popular tanks right now are just cylinders that fit around a carto that has a hole punched in it. You fill the cylinder with
juice and it feeds through the hole in the carto and keeps everything wet. You can actually make one from a couple 10ml syringes. I tried one on a dual coil carto and if I liked cartos, I would be using that set up exclusively. There's nothing more convenient. Those types of tanks can be used on just about anything.
I'm not really the best source regarding the ego tanks. The very first ego-t had come out when I started
vaping and it was my first real PV after the crummy kit I bought retail here. It was persnickity as all get out and I didn't care for what it did to the taste. I switched to using cartos a little after that. I got over that too.

However, that was in the first couple months of production for that device. I'm pretty sure they've solved those problems by now.