I was looking into buying a blackthroat monitor and I was looking over caresheets to see what should be used as substrate. Some of the sheets said I should use dirt from ouside. It also said that the bacteria in the dirt would help breakdown feces so a spot clean would be good enough for a cage clean. Couldn't the bacteria from the outside make the monitor sick? For my other monitors I always used the expanding dirt I buy at the petstore. Is that not good enough for burrowing?


