what kind of sand by the way, i'm doubting hermit crab sand would be good? or would tank gravel work the same? i don't think bare bottom pico tanks are good, are they? just curious cuz i'm heading out to grab a light for it if i can find one tonight

i got the tank filled with water and have a filter going already with about a 2lb chunk of rock in it from hubby's tank. just needing the light, substrate and frags soon
