Conditions of fish for polyculture

• Have complementary feeding habits
• Occupy different ecological niches
• Attain marketable size at the same time
• Tolerate each other
• All be non-predatory

Advantages

• Full utilization of feeding niche
• Full utilization of space available in the water column
• Full utilization of compatibility of species
• Full utilization of formulated feeds
• Fewer Chances of failing the enterprises.
• More economic return
• Less chances of epizootic disease and parasites

Disadvantages

• Difficult to harvest
• Difficult to maintain the food for all species of fish
• Need of high technical know-how.