So my 30G has been up and running for a month now and I would like to change my filter. After taking a peak in there it looks pretty dirty. However I do not want to lose my bacteria. Im still in the middle of getting this tank cycled, ( ammonia still rises about .125ppm over 24 hrs along with nitrite about the same with nitrates steadily rising) and I dont want to ruin it. Is it ok to change the filter outright or should I just crack it open and change out the carbon. maybe rinse the filter with tank water during a PWC?