only use a flavor you really like with those fluxomizers, they look to delicate inside to be able to clean
Fluxomizers are the newer ones like CE3 but still CE2 tech. Gotvapes fixed the main limiting issues of the clearo's with this though, and are great. Easy to clean, just shoot hot water or strong alcohol - everclear not isopropyl

- into the
tank, shake, then syringe it out...if you've ever worked with syringes IRL you'll do this naturally on the first try.
Another way is to use grab tip tweezers to pull the cap plug off (its the 3rd piece inside, past the mouthpiece and the first seal) but it's too easy to break the caps with the tweezers IMO.
The plastic that fluxomizers use is kinda like tupperware...you can smash them to death and they keep going no cracks, one of my main problems with ce2's.
One small issue is that the flavor of the
juice is harder to keep consistent on the clearo's. I don't know if it's having the coil nearly in my mouth or what but frustrating...one time you'll get a WOW
vape, the next you'll be like what's that carp in my mouth? Either way it's my fault because of the way I hit the thing, so keep in mind YMMV.