The best nanos are the DIY ones. You really aren't going to find a bad *ss standard, retail nano. My suggestion is to start from the base up. What I would personally do:
--Custom rimless tank (cubesque, like the new Solanas, sans the back filter unit).
--External overflow with simple horizontal "slit" in back of tank + a comparment to house some controllable Tunze nanostreams. That way, nothing protrudes.
--Nice skimmer, like one of the smaller Deltec models.
--Sump/refugium, preferably separate, if possible under custom stand. Stand would house all the aforementioned, including all controllers, etc.
--prepared valves for easy or even automated water changes, which entails a mixing tank that can pump directly to the tank and a drain valve at the same rate. (I'd like this for my 75
)
--Auto top-off, integrated with RO/DI unit
--Computer controlled peristaltic doser for 2(3)- part additives, since using a calcium reactor in a small setup isn't as feasible.
--Metal halide lighting, pendant-style with either a 150w HQI or something like the 175w 15K Iwasaki mogul-based bulb. T5 supplementation if feasible.
So, yeah. Something along those lines
If you'd like somethign a bit more integrated,
www.nanocustoms.com for more stuff (nice).
edit: Also try
www.nanotuners.com They also have some high-end stuff.
