I’ve been trying to switch the bedding I use for my tortoise, I use reptibark right now and I know bark is the safest for tortoises for indoor. Does anyone know the difference really between the zilla brand bark blend vs the zoo med reptibark? The zilla one is a lot cheaper and I go through ALOT of bedding so the reptibark at $30 a bag is getting a bit annoying when I need 4 bags just for one tortoise because he digs so much