Fish Fertilizer (Hydrolysed): Complete Guide
Cold-processed (hydrolysed) fish retains amino acids, beneficial oils, and micronutrients that heat-processed fish emulsion destroys. Its 2-4-1 NPK ratio feeds both soil microbes and plant roots through a single application. Mix 2-4 tablespoons per gallon for foliar sprays or soil drenches. More expensive than fish emulsion, but the richer nutrient profile shows in plant vigor, especially on organic vegetable gardens.
Key Facts
2N
4P
1K
N 2% Nitrogen: leaf and stem growth
P 4% Phosphorus: roots and flowers
K 1% Potassium: health and disease resistance
Learn more about NPKNPK Ratio
2N
4P
1K
N 2% Nitrogen: leaf and stem growth
P 4% Phosphorus: roots and flowers
K 1% Potassium: health and disease resistance
Learn more about NPKFormliquid concentrate
Application Rate2-4 tablespoons per gallon of water
Price~$5/lb est.
Release Speedmoderate
Burn Risklow
Low Risk: Safe application rate for most plants.
What is Fish Fertilizer (Hydrolysed) Best For?
When Should You Use Fish Fertilizer (Hydrolysed)?
Use for organic gardens, foliar feeding, and soil drench applications. Higher quality than basic fish emulsion.
When Should You NOT Use Fish Fertilizer (Hydrolysed)?
More expensive than synthetic alternatives. Strong odor limits indoor use.
Source:Oregon State Extension