One of the things you'll find the biggest difference in, IMO
, is that you'll have to prep your water at least the night before you plan on doing your water change, which will require a separate mixing container, powerhead, and heater. Another thing is that if you plan on doing a reef tank, an RO
unit is pretty much a must. That will require a bit more time. All in all, its just going to be a different experience, but I'm sure you'll find it quite rewarding in the long run.
Of course there are alot of other things that will be different, those are just the two biggest things that I, personally, find the biggest difference in.