I know this question has been answered plenty of times and I've come across it just as much.. but I forget >.>;;; How often are you supposed to change your filter? Right now, I have a 5g, which is working it's way to finishing it's cycling process, so I don't plan on messing with it just yet... but after it gets done cycling, is it okay to rinse the filter out if it seems really gunked up (in dechlorinated water, of course ^.^)? Also, I believe it's already been about 2 months since I've had this filter so.... is it about time to change it or should I just wait till it doesn't seem to be working as well er....?