And I thought I was the only one with a sump fetish.
I just recently finished this custom cabinet for my 110 gal tank. ATO stored in the left cabinet, food and chems in the right. The center is my 30 gal sump. It's somewhat unique in that it only has 2 sections. The first has the drains, SRO 2000 skimmer, pump for GFO reactor which is behind the sump, cheato and finally rock rubble which is right full to keep cheato pieces from getting away. Then the return section with an external pump.
Switches for skimmer, return, PHs and ATO. Tier for PHs and fuge lighting on back walls. Oh yeah, my bio pad for my QT filter is in there getting bacterialized (new word, I just invented it).