Differences between SW and FW

[FishStarter89]

okay, I have been into freshwater for several months now but am toying with the idea of starting a 90 gallon salt water tank. What are the major differences: e.g. cycling, equiptment, chemestry, sensitivity, etc. Thanks!

 

[Innovator]

Probably the main difference is sensitivity in that freshwater fish and invertebrates have a lower tolerance for NH3, NO2, and NO3 in comparison to saltwater animals. The initial cost to set up a tank is much higher in saltwater unless comparing to a freshwater planted display. The care given is much the same with different parameters to attend to.