Fish emulsion fertilizer is fast-acting. Com- pared to using compost, which acts as a slow-release system for plant nutrients, fish emulsion is a fast plant food that transfers nutrients quickly. Fish emulsion fertilizer is made from organic matter. Unlike synthetic chemical fertilizers, fish emulsion is environmentally friendly. This organic matter feeds microbes and stim- ulates the growth of microorganisms that im- prove soil health. Fish emulsion fertilizer is rich in nutrients. Most fish emulsion fertilizers have an NPK ratio around 4:1:1, meaning they are high in nitrogen (N) and lower in phosphorus (P) and potassium (K). Fish emulsion fertilizers often include other trace elements, or micronutri- ents, like calcium and magnesium.