Check the local papers for used tanks and equipment, there was one in my paper today, 55g salt set up, sand, HOT filter, heater, hood (basic), skimmer and mics items for $200, good way to get started from there you could develope some skills and information and upgrade the equipment as you understand the dynamics of how to care for a SW tank. Unless you are buying a Nano ready tank, I would not go with anything under 55g untill you understand the basics. Great way to start a FO tank