BFS larvae by-product, 100% organic fertilizer. Good N-P-K value, good C-N ratio. BSF Frass Composition (g/100g) Moisture Content: ~23.8 Organic Components: 81.1-98.0 Total Nitrogen (N): 3.2-3.9 Total Phophorus (P): 1.7-2.5 Total Potassium (K): 0.8-1.6 Na Content: 2.6 pH: 6.7-7.2 Organic, natural, & chemical-free fertilizer that is ideal for flowers, vegetables, fruits and lawns. Quoting prices by MT. Please note there may be slight variance in the frass organic fertilizer composition depending on the substrate fed to the BSF.