Makhro Grobest FH100 Liquid Fish Fertiliser

Premium 100% organic liquid fish fertiliser for lush, thriving plants.

Grobest FH100 is a natural fish hydrolysate fertiliser crafted to unlock the full potential of your plants. Enzymes work at cool temperatures to retain all beneficial components — preserving the integrity of the organic matter for maximum efficacy. Whether you're growing roses, vegetables, fruits, ferns, or houseplants, FH100 feeds your plants while fostering a natural relationship between your garden and the soil biology that sustains it.

Features

• 100% Organic Fish Hydrolysate: Processed with enzymes at cool temperatures to retain all beneficial components.
• Rich in Nitrogen & Phosphorus: Supports rapid plant growth with organic nitrogen and available phosphorus.
• Complete Amino Acid Profile: Contains 17 amino acids including Glutamic acid, Isoleucine, Tyrosine, Arginine, and Lysine.
• Soil Biology Booster: Supplies the complete fats and proteins needed by soil microorganisms.
• Versatile Application: Suitable for foliar spray, soil drench, seed coating, and fertigation.
• Broad Compatibility: Ideal for roses, vegetables, fruits, ferns, houseplants, small grains, vineyards, and orchards.

Specifications

• Formulation type: Liquid fish hydrolysate (100% organic)
• EC: 15.2 dS/m | pH: 3.8
• Compositions:
  • Organic Nitrogen (N): 2.18%
  • Ammonia (NH₃): 0.18%
  • Nitrate (NO₃⁻): >0.01%
  • Available P₂O₅: 2.82%
  • Orthophosphate (PO₄³⁻): 1.16%
  • Soluble K₂O: 0.28%
  • Calcium (Ca): 0.07%
  • Magnesium (Mg): 0.09%
  • Sulphur (S): 0.10%
  • Sodium (Na): 2520 ppm
  • Zinc (Zn): 20.19 mg/L
  • Boron (B): 1.49 mg/L
  • Copper (Cu): 1.45 mg/L
  • Molybdenum (Mo): 0.24 mg/L
  • Manganese (Mn): 2.17 mg/L
  • Cadmium (Cd): 0.298 mg/kg
  • Selenium (Se): 0.033 mg/kg
  • Iron (Fe): 84.41 mg/kg
  • Cobalt (Co): 0.02 mg/L
• Amino acid profile (% w/w):
  • Serine: 0.37
  • Glycine: 0.81
  • Arginine: 0.83
  • Alanine: 0.61
  • Cystine: 0.07
  • Valine: 0.49
  • Lysine: 0.83
  • Leucine: 0.74
  • Aspartic acid: 0.71
  • Glutamic acid: 1.10
  • Histidine: 0.25
  • Threonine: 0.38
  • Proline: 0.42
  • Tyrosine: 1.16
  • Methionine: 0.16
  • Isoleucine: 1.43
  • Phenylalanine: 0.43
• Available sizes:
  • 500ml
  • 1L
  • 5L
  • 25L
• Application rates:
  • Garden & Home: 100ml per 15L water (dilute 1:100–200)
  • Soil drench: 12–20 L/Ha
  • Foliar spray — Small Grains: 3–5 L/Ha
  • Foliar spray — Vegetables: 5–9 L/Ha
  • Foliar spray — Vineyards: 5–9 L/Ha
  • Foliar spray — Orchards: 6–10 L/Ha
  • Seed coating: 1–5 ml/kg of seed
• Registration: Reg. No. M237 | Act No. 36 of 1947
• Registration holder: Grobest ZA (Pty) Ltd
• Product label: Download product label (PDF)