I live on the Big Island of Hawaii, I too have been wondering about "coral" sand. So confused, some say "play" sand others say No. My Run/Coop is on dirt ground, shavings towards the back corner with a spot of sand (bathing) under their "nest house". It's been in operation since January of this year & so far not complaining. I do have a poop board below the roost they sleep on, a definite plus and pick up whatever poop is on the ground daily (bonding time). It RAINS alot here, gets humid & hot so my RC design is really simple, the shower curtains on EMT rods another big plus. But wanting to toss some sand in front of the door as a shoe cleaner, just not sure if "coral" sand is ok to use or "play" sand although now I'm reading "construction" sand....Don't want to use anything that will hurt the Girls....
