Found this Coralife 65g HOB skimmer on sale, at 40% off. Looking for advice if it's worth it or not. Not seeing a lot of reviews on it. Tank is 65g. Thinking maybe 10-12 fish in total plus CUC. In addition, when do I actually install a protein skimmer? At setup, after initially adding fish, or after adding all fish and corals over the next few months? Never owned one.