Can i skim freshwater?
Yes, it is possible to use a protein skimmer in freshwater. But it makes no sense. The freshwater usage of skimmers does not justify the purchase. The benefits of skimming are only profitable in saltwater – that is why it is commonly believed that skimmers only work in salt. Unless you have scientific information about why the skimmer will work in your fresh environment, it is not advisable to waste your money!