So I picked my first e cig about 3 weeks ago (never smoked cigs before, I just wanted to try it). I am absolutely in love! I have the VaporX XPS starter kit with some non-nicotene vitamin-smoke juice in it. So I have a few newbie questions. The wicks in my tank have turned a dark brown near the ends of them (the end connected to the coil) and it turns my e liquid from clear to brown every time I fill it now. It still tastes and vapes fine, but I should probably replace something on it soon. So to replace it, can I replace just the wicks? Or do I have to replace the whole tank? I cannot find a way to take out the cartomizer (I think is what it is) from the actual tank. If you guys could help me that would be great. Thanks in advance!