i dug out the holes in the ground and will fill it using organic soil. its a mix of Fox farm OCean forest. vermiblend. and perlite to help drainage. the bat guano i will put in a pantyhose and tie it off and let it sit in a 5gallon bucket of water with an airstone at the bottom that bubbles up air from a pump i bought for two days and the nutes will mix into the water as a tea then i can use it after a day of sitting. then toss the used bat guano. thanks for the rep