Juice getting really thick in my tank

[invididual]

for some reason my ry4 is getting really, really thick in the last half mm or o in the bottom of the tank, ive drained tanks before and never had this happen, what could cause it? a clogged tank carto?

 

[StuckinLA]

I don't know if this is the cause, but I vape camtel which is thinner and lighter then ry4 and I have noticed that sometimes when the carto's coil gets gunked up it seems to make my juice thicker and darker.

 

[invididual]

it definitely got thicker and darker, probably is the cause... ill try to clean it, if not, just toss it, theyre cheap enough to replace