Production of tilapia nilotica (Oreochromis niloticus) is highly influenced by environment and hereditary traits of the stock. High-quality fingerling can ensure the successful production of marketable tilapia in 90 to 120 days. It has been reported that crossbreds of F1 (first generation) backcross of two T. Nilotica strains stocked at 15 square meters in net cages at the central bey of Laguna Lake and grown from May to August reached 100 to 180 grams in 70 days.

Tilapia hatchery. (1985, October 16). Bulletin Today, p. 1.