Grouper Fish Culture Techniques
Species Information
Scientific Name: Epinephelus spp.
Common Varieties: Orange-spotted grouper (E. coioides), Giant grouper (E. lanceolatus)
Market Size: 0.8-1.5 kg (restaurants), 3-5 kg (export)
Culture Systems
Floating Cage Culture
- Circular HDPE cages (5-10m diameter)
- Stocking density: 15-20 fish/m³
- Depth: 3-5 meters
- Anchor in 10-15m water depth
Pond Culture
- Earthen ponds (0.2-0.5 ha)
- Water exchange: 20-30% daily
- Polyculture with seabass possible
Production Cycle
| Stage |
Duration |
Size |
Key Activities |
| Nursery |
60-90 days |
5-10 cm |
Weaning to artificial feed |
| Grow-out |
8-12 months |
0.8-1.5 kg |
Regular feeding, health checks |
Feeding Management
- Feed type: Moist pellets (40-45% protein)
- Feeding rate: 3-5% body weight/day
- Frequency: 2-3 times daily
- FCR: 1.8-2.2:1
