Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 | 142oz - Concentrate - OMRI Listed - (Case of 4)

Fish & Seaweed Fertilization Concentrate, 142oz

A single-input fertilizer covers part of a feeding program, but fish hydrolysate alone skips the trace minerals and growth compounds that seaweed contributes on its own. Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 blends both into one complete concentrate, built to support stronger blooms and better-tasting crops across a regular feeding schedule.

This 142oz concentrate is OMRI Listed and recommended for vegetables, berries, and fruit trees, helping build the natural sugars behind better-tasting harvests.

Key Features & Benefits

• Fish Hydrolysate & Seaweed Blend — supports a complete fertilization program in one concentrate.
• OMRI Listed — certified for organic vegetable, berry, and fruit tree fertilization.
• Builds Natural Sugars — supports better-tasting crops at harvest.
• Concentrate Format — dilutes into a working feeding solution rather than shipping mostly water.

Who Should Use This Fertilizer

Growers who want one OMRI Listed concentrate that combines fish hydrolysate and seaweed for vegetables, berries, and fruit trees.

About Neptune's Harvest

Neptune's Harvest is a division of Ocean Crest Seafoods Inc., a fish and seafood company established in 1965. The company manufactures its fertilizer concentrates from fresh Atlantic fish processed at its own facilities in Gloucester, Massachusetts, combining that base with seaweed for its Fish & Seaweed line.

Frequently Asked Questions

What does Fish & Seaweed Fertilizer 2-3-1 contain?

Fish hydrolysate and seaweed blended into one concentrate. The combination is built to cover a broader nutritional base than either ingredient would alone.

What crops is it recommended for?

Vegetables, berries, and fruit trees. It's formulated to build the natural sugars that contribute to better-tasting harvests in those crop types.

Is it OMRI Listed?

Yes, across all three case sizes offered. That listing applies to the concentrate itself before dilution.

How is this different from Neptune's Harvest Fish Fertilizer 2-4-1?

The 2-3-1 blend includes seaweed alongside fish hydrolysate, while the 2-4-1 product is fish hydrolysate alone with a higher phosphorus ratio. Choosing between them depends on whether a grower wants the seaweed's added trace minerals and growth compounds.

Which case size should I choose?

The 18oz and 36oz cases of 12 suit smaller operations or retail resale, while the 142oz case of 4 suits growers mixing larger batches less often. All three dilute at the same concentrate ratio.