Guillard's F/2 Phytoplankton Fertiliser

Guillard’s F/2 is a balanced microalgae fertilizer formulated to support strong, consistent phytoplankton growth. Designed for use in culture systems, Guillard’s F/2 provides the essential nutrients required for healthy cell division, rich pigmentation, and high-density harvests. With the right balance of trace elements, nitrogen, and phosphorus, it sets the foundation for successful phytoplankton production.

Key Benefits

• Provides complete nutrition for phytoplankton cultures.
• Supports rapid growth and sustained culture density.
• Enhances pigment production for vibrant, nutrient-rich phytoplankton.
• Reliable formulation trusted in aquaculture and research.
• Easy-to-use dosing for consistent results.

How It Works
Guillard’s F/2 delivers a carefully balanced blend of nutrients directly into the culture medium. These nutrients fuel algal metabolism, enabling strong photosynthetic activity, rapid cell division, and healthy biomass accumulation. With optimal nutrient availability, cultures reach peak growth phases more reliably, resulting in dense, high-quality phytoplankton for feeding or research applications.

Dosing Guidelines

• Standard Dose: 1 mL of F/2 per 1 L of culture medium.
• After mixing, inoculate the medium with your chosen phytoplankton strain.
• Allow culture to grow under appropriate light and aeration until it reaches the desired growth phase before harvesting.
• Always ensure proper sterilisation of vessels and equipment prior to starting new cultures for best results.
• Use within 1 year of opening.

Application Tips

• Use clean, sterile vessels and equipment to reduce contamination risk.
• Ensure consistent light and aeration for even growth.
• Harvest at peak density to maximise nutritional value.
• Store F/2 in a cool, dark place to preserve stability.

Safety & Handling

• Not for human or animal consumption.
• Keep out of reach of children.
• Avoid ingestion or direct contact with skin and eyes.
• If contact occurs, rinse with fresh water and seek medical advice if irritation persists.
• Gloves and eye protection are recommended during handling.

Best Used When

• Starting new phytoplankton cultures.
• Maintaining ongoing culture systems.
• Preparing dense, nutritious live feed for copepods, corals, clams, and other filter feeders.
• Supporting research or aquaculture requiring high-quality phytoplankton.
• Boosting biodiversity in your reef.