Do you know anyone who owns a salt-water fishtank? How much more work is it to upkeep?

I am considering eventually to get a salt-water fishtank just to be different.

Do you know anyone that has one? What type of fish did they get in them? How much more upkeep does it take to upkeep a salt-water fishtank?

Thanks for answering.

P.S. Guess the pokemon! :-D
Do you know anyone who owns a salt-water fishtank? How much more work is it to upkeep?
Post Opinion