Buried Treasure Nitro Bat Guano 1 lbBuried Treasure Malaysian Nitro Bat Guano is a natural fertilizer that contains nitrogen, potassium and phosphorus. Plants use nitrogen to enhance leaf growth and plant vigor. It can be used indoors or outdoors on vegetables, herbs, flowers, ornamentals and in hydroponic applications. Buried Treasure Guano is micronized for better solubility and delivery. Does not contain fillers.