Need to know the proper amounts of bat guano & worm castings to add to my coco/perlite mix. I'll be doing a 3:1 ratio for the coco & perlite. The guano we have is the fine sandy kind, not the pellets. Thanks.
25% EWC....1tbls per gallon of guano. If your wanting a organic grow your going to need way more amendments to build microbial activity. The EWC will work fine and add some good texture to the mix but, might want to top dress with various guanos for veg and flowering.
