Fuel — Fish Amino Acid

What is Fuel?

Fuel is fermented fish amino acids — a liquid produced by fermenting raw fish heads and guts with brown sugar. As fermentation proceeds, proteins break down into their component amino acids. These amino acids, already in the form plants and soil organisms can use directly, become a concentrated biological fuel source.

What does it do?

Plants can synthesize amino acids from inorganic nitrogen, but the process requires significant energy. When pre-formed amino acids are available, plants bypass this energy-expensive step and put that energy into growth. The main thing you'll see is leaf growth — more canopy, more solar panels. Young plants and leafy greens benefit most; a healthy mature tree makes most of its own amino acids and needs much less. Soil organisms also respond strongly to amino acid availability.

How is it made

Use raw fish heads, guts, and spines — deep-sea fish are best. No freshwater fish, no dried fish, nothing already rotten. Far from the ocean, raw beef scraps and guts work too. Layer the fish with an equal weight of brown sugar in a five-gallon bucket, like lasagna, and close it with a solid lid. The next day it should smell like a fresh fish market, not rot.

Then wait: three months is okay, one year is better, three years is best. Several five-gallon buckets beat one big drum — if a batch goes bad, you lose less sugar. Dilute 1:1000 (about 4 ml per gallon) to 1:3000 (about 1 ml per gallon), mixed in with your other solutions, and spray the underside of the leaves. Never go stronger than 1:500.

When to use it

During leafy, vegetative growth, once or twice a week, and whenever a plant looks rigid and stalled. Back off for mature trees and during late fruit ripening. Too much Fuel makes soft, fast growth that draws thrips, scale, and aphids — if leaf-suckers show up, ease off Fuel and reach for Structure.