oh, as for livestock...i know i'm a weirdo with this, but i always figured if i had a nano i'd do something totally different. no clowns or anything like that, i'd do just 1 puffer (if non-reef) or a purple lobster (if reef). something unique, ya know? (my lfs guy has this crab that's HUGE now, it's, well, i don't know size, but HUGE, it tears silversides to shreds in seconds...he just wants to get rid of it, apparently someone brought it in when it ate a tang or something wacky like that. i keep contemplating a nano for that bugger).