BioBizz Fish-Mix 5L

Condition Your Substrate and Feed Plants With Biobizz Fish-Mix, 5 L

Fish emulsion is one of the oldest organic fertilizers in agriculture — derived from fish processing byproducts, it provides a broad-spectrum organic nitrogen source alongside phosphorus, potassium, and trace minerals. Biobizz Fish-Mix uses North Sea fish emulsion as its primary base, combined with Dutch sugar beet extract (molasses) to also support the microbial life in the growing substrate.

Unlike some commercial fish emulsions, Fish-Mix is not extracted with acids and is not stabilized with BHT (butylated hydroxytoluene), a synthetic preservative. The result is a cleaner fish emulsion product consistent with the Biobizz organic growing approach. Fish-Mix conditions both soil and coco-based substrates, encouraging the bacterial flora that improves nutrient availability around the root zone.

Fish-Mix is mild enough for use from the first stages of plant life — seedlings and cuttings — and can be used throughout both vegetative growth and into the flowering period until harvest.

Key Features & Benefits

• North Sea fish emulsion base — derived from North Sea fish, providing a broad-spectrum organic nitrogen source alongside phosphorus, potassium, and trace minerals.
• Dutch sugar beet extract — molasses component feeds substrate microbial populations, complementing the fish emulsion's direct nutrient contribution.
• No acid extraction, no BHT — not extracted with acids and not stabilized with BHT (butylated hydroxytoluene) — free from common synthetic additives in fish emulsion products.
• Conditions soil and coco substrates — the combination of fish emulsion and molasses conditions the growing medium and encourages bacterial flora that supports plant nutrition.
• From seedling through harvest — mild enough for use from early seedling stages through to the end of the flowering and fruiting period.
• 5 L volume — available in 5-liter for mid-volume use.

Who Should Use Biobizz Fish-Mix (5 L)

All growers using organic or nature-oriented feeding programs who want an organic liquid fertilizer that conditions the substrate and supports microbiology while providing direct plant nutrition from seedling through harvest.

Fish-Mix Dosing: All-Mix vs. Light-Mix

Biobizz recommends a 1 ml per liter dose of Fish-Mix when used with All-Mix substrate — which is already heavily amended and requires a lighter touch. When using Light-Mix, the recommended dose increases to 2–4 ml per liter, as the substrate provides less native nutrition and relies more heavily on the applied fertilizer. Follow the Biobizz official Nutrient Schedule for week-by-week dosing guidance specific to your substrate type.

Frequently Asked Questions

What is fish emulsion, and why is it used as a fertilizer?

Fish emulsion is a liquid fertilizer made from fish processing byproducts. It is rich in organic nitrogen (from proteins and amino acids), phosphorus, potassium, and trace minerals. Fish emulsion breaks down in the soil, releasing nutrients and feeding soil microorganisms — making it both a direct plant food and a substrate conditioner.

Why does Biobizz emphasize that Fish-Mix is not extracted with acids or stabilized with BHT?

Some fish emulsion products use acid extraction to break down fish material more efficiently, and BHT (butylated hydroxytoluene) as a synthetic preservative to extend shelf life. Biobizz avoids both, keeping Fish-Mix free from acids and synthetic preservatives — consistent with their organic and nature-oriented product formulation standards.

Can I use Fish-Mix in hydroponic systems?

Fish-Mix is primarily formulated for soil and coco-based substrates where it can condition the growing medium and support microbial life. In inert hydroponic systems without substrate, its soil-conditioning benefits are not fully realized. For pure hydroponic growing, check the Biobizz official Nutrient Schedule for guidance on Fish-Mix compatibility with your specific system type.

Can Fish-Mix be used as a foliar spray?

Yes — Biobizz states that Fish-Mix is mild enough to be sprayed directly onto leaves during the vegetative growing cycle. Use a lower dilution rate for foliar applications than for root-zone watering, and avoid spraying during the flowering phase when residue on flowers is undesirable.