New to the site as a member but have been reading alot of the posts for questions that I have had about my 2 month old 25g salt water tank. Have had 2 100g freshwater tanks for three years and figured I would try my hand at salt but there is so much information just don't know how to filter it all. My LPS guy has been a huge help but just looking for more. Just have questions if I need to add a protein skimmer or not. I'm sure I'll use the form a lot.