10 gallon is the only functional system. I currently home a false percula, 2 domino damsels(for now) and a orange base anemone, 2 sand sifting snails and 3 turbo snails.
I plan to ad a sand sifting star, another clownfish, more live rock to aqua scape and some zoas.
the 20 gallon is in the works, building my own stand/canopy, diy led lighting from rapid leds, 10 gallon sump with 4 chambers( intake, LR, sand/macro algae, outake) sump will have a 24/7 led light for the algae),