We had a salt tank on Okinawa, Japan...it was the easiest thing in the world for us to take care of...of course we could just go down to the seawall and fill up with new water whenever we wanted. The fish were cheap too as we caught our own...had lots of beauties we did. There was this time we caught a vey small octopus...figured he got out through the lid because we couldn't find him... :-) Then the fish started disappearing. He was really cool though.
I think the other thing that made it easier was that we had it BK (before kids). We put up a fishtank here about a month ago...first time since Okinawa...it's fresh water and we've had to replace 5 fish so far. I think we overfed them. :-( It's a 27 gallon octagon tank down in the kid's school room.
Mrsnad
For whatever reason, we have trouble keeping fish alive very long in our saltwater tank. But these fairy basslets we are very successful with, able to keep for a year or more without much trouble, there are 2 in the tank now that I think have been there 2 years, lucky they are pretty. Also, starfish and banded coral shrimp do well for us.