Is the bat guano in say roots organics soil or any other organic soil safe? I understand bat guano is nasty stuff to humans so I assume the bat guano in these soil mixes is treated or maybe its not even bat guano at all? Can someone explain it to me?
Safe? For your plants? Of course. Most Bat Guanos are some of the best fertilizers in the world. It's not treated and it should be real Bat Guano. Almost all fertilizers are poisonous to humans but can be very good for plants.