Somes noobs questions, skimmer and tank size

[CM125]

Well as for skimmers, there is a great post right now about someone deciding between skimmers, there are some links as well, he pretty much has the top 4 best skimmers to pick. As for size bigger is better, I have 6' 125 gallon and im really glad i started with it, its more forgiving salinity and chemical wise and it gave me the room to expand when i was ready.