Tilapia: Food
Tilapia are plant eaters. They have specialized adaptions to filter algae from the water and especially algae attached to surfaces. Some tilapia species will consume aquatic plants such as duckweed. However, the nutritional benefit from duckweed is marginal. Most aquatic plants contain 95 percent water and only a relatively small fraction of the dry matter is protein. Thus, plants such as duckweed or water meal can be seen as "roughage" with limited potential as a food source of tilapia.
