Well....wouldn't a good in-home RO
unit be even cheaper than a RR tank? Plus it would be a lot less hassle! Get that and a bucket on wheels (or 2, one to mix up the new SW
and one to drain the water change water) and a pump and your water changes should be a lot easier.
I'd give my left arm for a 75 instead of my 55.....FW
planted, but the difference in space for aquascaping is amazing, I know it would be the same for a reef.