Vital Fish Powder (Fish Protein Hydrolysate) - Soluble Grow Fertilizer 15-0-0.5Promote rapid vegetative growth with Vital Fish Protein Hydrolysate! Vital Fish Protein Hydrolysate is an organic, dry nitrogen fertilizer to help promote a healthy growth rate of plants while assisting in the sustainability of soil health. With 15 0 0. 5, this fertilizer contains the proper nutrients and microorganisms to support beneficial bacteria, aiding in soil and plant health. An organic, dry, soluble fish hydrolysate composed of over 80% L