Each environment has its own unique criterion, including longoing costs,everyday maintenance, and related ?sh care requirements. Sure, a saltwater (SW) tank requires considerably more work and attention, but it's hard to beat the satisfaction of knowing that you created a unique environment for warm water ?sh that few aquarists enjoy. Obviously, many will argue that a freshwater (FW) system has its own merits. At the end of the day, personal preference dictates which setup is right for you. Of course, practically speaking, so does a budget. But if the commitment to creating and maintaining either type of system isn't daunting enough to keep you away, you'll be rewarded by your efforts from the moment your ?sh are introduced to your t ank! Read this book that will help you to decide