Hi all, I'm a newbie BP owner and currently have Calcisand as a substrate based on the pet store reccomendation. The info on the bag says it's harmless and digestable, but most of the forums say to avoid sand. Will this cause immediate harm to my BP? I will probably switch out of it eventually, but I would prefer to destress my ball first and get past the first few feedings. What do you guys think would be best? To switch now and stress my new pet, or wait for a while and hope it doesn't cause any harm? Thanks for the help!