I have had a freshwater tank now for a little over a month and have decided to switch to saltwater. I have a 55 gallon tank with a fluval 304 canister filter and a HOB
filter. What do I need to start a saltwater tank, and what does it take to maintain. I know next to nothing about saltwater tanks. I know that there is special salt and the aquarium has to be at a certain salinity, but that's about it. Any help is greatly appreciated!