I have two hens that are beloved pets. They have a large run and a large two story house. They get free range several times a week when we are out to watch them. We live in the country..lots of predators. ANYWAY.....my girls love a good dirt bath so i got a large feeding pan (hard plastic) and filled it with sand so they have it in their pen. I add grit, and calcium as well as grasses, grubs mealworms and hen treats and mix it all up. They seem to love discovering their "treats". My question is, should i be offering the grit and calcium in separate containers? I just read a facebook post that said i should. The girls seem happy, healthy, lay regularly and seem to not only enjoy their rolls in the sand but also the joy of discovering all the hidden treats. What do you think?