Get a few nassarius snails, and fill the back compartments of your nano with LR
rubble. You may want to get some macro in there as well. I have some grape calupra in my mantis nanos and it keeps water quality perfect. This would also server as a good place for your horses to wrap their tails around. I would be worries about 3 gal
changes on a nano. This could cause much stress on a tank this small.
3' fine sand bed 1x Orange Stripe Prawn shrimp goby, 1x sixline wrassemated pair of true percula clowns, 1x CBS shrimp, 2x peppermint shrimp, 1x pistol shrimp, 1x tiger tale cuke
, ~20+ snails, ~10+ hermits, 1xserpent star.
green Bubble coral, hammer coral (8 heads!) ,various Zoos,green finger leather, green star polpys ,shrooms
175w 10k MH
28w actinic 03
2x maxi jett 1200
Prizm skimmer (modded)
Hagen powerfilter(for running carbon 24/7)
nano arctica chiller