Most bat guano is high in N anyhow you shake it.

If I were growing with it, I would mix it...1/4 cup powder per 1 gallon water. Shake it, pH adjust it, and water with it every 4 waterings during veg, and every other watering during flower.

Its quite natural so it will be difficult to over do it. I like tea method as it lays a fine silt on the soil surface that keeps it going with each water.

However, guano with no label, no instructions, no nothing prolly should be replaced with something you know about.
HARDDON Reviewed by HARDDON on . Bat Guano Hi folks, can someone plz tell me how best to use my Bat Guano.Its powder and in a container with no instructions on it. I am growing in soil, have 6 seedlings about 10 days old under a 2oowt invirolight in plastis cups at the moment. I plan to transplant in about 2 weeks time into bigger pots and slowly move them under my 400wt aircooled hood. I am using Boibizz light mix soil and there organic Ferts. With the Guano, do I mix some in with my soil when transplanting or do I make a tea and Rating: 5