I am new to fountain pens and I was just wondering if when I have to clean my pen (which I read was about once per month) can I keep the ink that I get out of it before starting the cleaning process so that I can use it later, or should I just throw that ink away. I might not be able to use all of my ink in a month, so I just wanted to know if I can save up the ink for later use, is it usable ? (I am asking this because I read about how fibers from the paper, dust particles and dried ink must be cleaned, so in my mind there is a chance that that stuff could also be found in the ink, and I don't want to use an ink that has such particles, potentially getting my pen stuck or something) Thanks in advance and sorry for my noobyness