Right now I have a 20 gallon freshwater fish tank. I know all of you guys are saying, you don't belong here!!!!! But I do... I want to convert my tank to saltwater! I need to know everything. Hopefully step by step instructions. What type of substrate, fish, rock, filter etc. I am brand new and I know very little. Do I need a protein skimmer? And if I do what kind. Thank you!


