Biofloc fish farming technology is a very innovative and affordable system in which
harmful, toxic materials such as Nitrate and Ammonia can be converted into
proteinaceous feed at low costs. Biofloc system was developed to maintain a pollution
control over the aquatic animal production. The availability of water is a limiting factor
of the total production cost of fish farming and biofloc wastewater management is the
perfect solution for the dilemma. The principle of the technique is the generation of
Nitrogen by maintaining a higher concentration of Carbon : Nitrogen ration and thereby
acquire the dual advantages of effective waste management as well as the production
of proteinaceous feed to the fish.
The working of biofloc system can be explained briefly as follows: Heterotrophic
bacteria is the main component of the biofloc system. The heterotrophic bacteria
consumes the nitrogenous waste (ammonia) produced by the fish and inturn converts
them into protein which can be used for the growth of the fish itself.
The good nutritional value found in biofloc is an added advantage which is a good
source of minerals and vitamins, especially phosphorus. The soyabeen or fishmeal
present in the feed can be replaced by the dried biofloc ingredient.
The above mentioned statements clearly points out the fact that biofloc fish farming is
the most cost effective and nature friendly way of fish farming. The essential
components such as water and land are used in the most efficient way in biofloc. Higher
productivity and higher biosecurity ensures the profit. The use of cheap fish food or
trash fish for fish feed formulation is not at all needed here. Altogether the biofloc fish
farming technology is a burgeoning system in which people are willing to invest more
and more as the days pass by. It is the easiest way to earn more profit with the addition
of minimal input.