I have a aqua c EV 120 thats been running on my tank for 8 months now. I clean the collection cup and the neck once a week. The neck i just clean off inside with a wet paper towel there is some coralline algae growing on the inside of the neck in some spots. My question is should i take the whole skimmer out and clean it very well inside and outside with vinegar and such as a regular once or twice a year thing? Or is it ok to just cleant he cup and neck?