55 gives you a lot of options, but still no clown loaches. A couple schools of tetras(2-3 with 6 per school), a pair of angels or apistos(another option is rams), a large school of cories(8-10), and a couple livebearers would make for a interesting, colorful tank.
It's not a dumb question if you ask it.
Too many tanks? GASP! How could that be?