Hapas may be moved and set up in a variety of locations, but are especially well suited to lakes and ponds. Continuous production is possible. Tanks Tank production of tilapia fry and fingerlings is practical where space for ponds is limited or expensive to develop. Cement tanks are common, but other materials, such as fiberglass or plastic lined pools, may be used. Greater control over water management and routine maintenance is possible than with other systems.
Continuous production is possible.
Fry yields per unit area are higher than all the reproduction systems described except for net enclosures. A farmer must choose which production method is best suited to his situation. Table 1 provides a rough guide to determine which system to use. Culture facilities require sufficient, good quality water free of harmful chemical substances. All facilities should be cleaned and maintained on a routine basis.