Saltwater is not THAT hard..
If you have the mindset of you have to do water changes you have to do this and you have to do that. Its not really that hard and kind of gets in your routine. I started with a 10 gallon (that lasted like a wk ten i found a leak and had to go to a 15 long). Then I went to a 29 then back to a 15(for lighting). I had owned F/w in the past but it wsa when I was younger (I think 10ish maybe not sure).
Good Luck, Just research and you should be fine.