Thanks Mike. All this is new to me. This is really helping me figure out if I need a UV, skimmer, refuge, what type of lighting, do I need an R/O system, etc. I'm having a blast already and have just started to gather some equipment. I wish I had joined this site prior to getting anything, but I only have bought a few things and hope all the reading I have done; and will do, will lead me in the right direction. I am feeling I really don't need the UV. Would this be a correct assumption? Thanks!!