I am toying with the idea of switching my fresh water tank to a salt water tank. I have a 20 gallon with a 20-50 power filter, heater, gravel and plastic decorations in it at the moment. I was wondering if anyone knows from experience what else I will need, how to make the switch, upkeep, all that jazz..All I know about salt water tanks is that it's better to use sand, live plants, something to produce more current ect. I'm viewing my options here and I was wondering if anyone had some tips, or ideas that could help me. I would really appreciate your time and opinions!