And before you say 'it can't be done', just stop it.
kgoldy's tank full of neglect - Page 84 - Members Aquariums - Nano-Reef.com Forums (hate to link to other forums, but this is the best example I have ever seen)
No water changes in two years, no skimmer for longer than that, and parameters that ended up measuring out to this:
Check out those colors, and growth can only be described as 'explosive'. No dosing other than saturated kalk for topoff, and fish are fed twice per week exclusively with NLS pellets. Chaeto is removed from the refugium once per month, and that's all the export that goes on.
Absolutely remarkable. I think I'm going to ignore the heck out of my tank and see if it ends up looking like that lol!
Anyone else know of any awesome skimmerless tanks?