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Square Fons

India's First Integrated Soft Shell Crab Farm

From hatchery to export — Square Fons is pioneering India's first fully integrated soft shell crab operation. Scientifically managed hatchery, advanced grow-out systems, and world-class processing facilities under one roof.

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Our Integrated Operations

From broodstock to export — complete control over quality at every stage of the soft shell crab value chain.

Hatchery

Seed Production
  • Broodstock Management — Mature Scylla serrata broodstock in controlled conditions
  • Larval Rearing — Zoea to megalopa to crab instar stages
  • Nursery Grow-Out — Crablets reared to 60-100g in earthen ponds
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Grow-Out

Farming Systems
  • Vertical Box Farming — RAS-based individual housing, zero cannibalism
  • Pond Culture — Traditional earthen pond grow-out systems
  • Organic Feed — Natural feed at 8% body weight every 2-3 days
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Processing

& Export
  • 24/7 Molting Monitoring — Harvest within 4-5 hour window post-molt
  • Grading & Freezing — A/B/C grade sorting, IQF freezing, vacuum packing
  • Cold Chain Logistics — -18°C maintained from facility to destination
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From Hatchery to Export

Our integrated model delivers complete quality control across the entire soft shell crab value chain.

01

Hatchery & Nursery

Mature Scylla serrata broodstock are spawned in controlled conditions. Larvae progress through zoea, megalopa, and crab instar stages over 3-4 weeks. Crablets are nursery-reared in earthen ponds to reach 60-100g before transfer.

02

Grow-Out Systems

Crabs are transferred to individual vertical boxes or pond culture. RAS technology maintains optimal water quality with advanced filtration. Individual housing eliminates cannibalism. Organic feed at 8% body weight every 2-3 days ensures healthy growth.

03

Molting & Harvest

Crabs monitored every 4 hours around the clock. Newly molted crabs are immediately transferred to aerated freshwater bath, then cleaned and chilled. Critical 4-5 hour window — shell hardening begins within hours of molting.

04

Quality Control & Export

Crabs graded A (>90g, full legs), B (>90g, partial legs), or C (<90g). IQF frozen and vacuum packed individually. Cold chain maintained at -18°C from facility to destination. Complete export documentation including health certificates.

Quality Standards & Certifications

We are Start up India certified
CERTIFICATE NO: DIPP264064

Latest Industry Insights

Stay updated on soft shell crab farming, global market trends, and India's growing role in aquaculture exports.

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Contact us for pricing, samples, technical specifications, or partnership inquiries.

Why Square Fons?

  • India's First Integrated SSC Farm — Complete control from hatchery to export
  • Scientifically Managed — RAS technology, organic feed, 24/7 monitoring
  • Export Ready — HACCP standards, cold chain logistics, global compliance

Contact Information

info@squarefons.com
+91 98 3015 1313
E/135 Ramgarh Colony, Raja S.C. Mullick Road, Calcutta, West Bengal, India-700047
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