Reverse Osmosis Units

[Rusty Witek <jwitek@stetson.edu>]

This is all pretty theoretical right now, but if I were to get an R/O unit
to treat our Ph 7.8/hard Central Florida water, what should I look
for in such a unit?  I have no idea what any of the abbreviations in the
ads mean, and I'm not too sure exactly what makes one kind better than
another.

Any info/experiences anyone would like to share?  (I probably can't spend
much more than $175, if that.)

(I just bought a male and 3 female A. cacatuoides, which suppposedly were
born and raised in local water.  Beautiful fish.)

Thanks,

Rusty