I already put down 20 bags of this sand into my shed that im converting to a coop for my chickens and im extremely paranoid that I have the wrong kind because I have read ground quartz and silica are not safe for chickens respiratory tracts. I have also seen some say that it's fine. I'm not keeping chickens for the meat, just eggs, so I am trying to give them the best environment for them to live their longest healthiest lives. thank you! this sand is washed as well.