I have some Food grade DE and have two very specific questions. Can you expose your 4-5 week old chicks to it (they were brooded outdoors since 1 day old)? That makes me believe that they may have bug issues here in Florida, but I can not see any yet. Can I make them a dust bath area inside the coop with the DE? It has been raining for 5 days straight and they are cooped-up.