The Marine Aquarist Roundtable of Sacramento (or MARS) would like to welcome you to our club website. If you are new here, there are a few things that we would like to let you know about MARS and what we have to offer. MARS is a Sacramento, California based regional club where the knowledge and materials required to keep marine animals are enthusiastically shared. Our goal is to help educate our membership about saltwater aquariums. If you are just beginning or have had saltwater tanks for years, this is the place for you!