Biofloc is defined as a collection of macroaggregates – diatoms, macroalgae, fecal pellets, exoskeletons, remains of
dead organisms, bacteria and invertebrates.It is a live colony of macroaggregates and bacteria suspended in the water column. Presently, studies by several major universities and private companies are using biofloc as a single-cell protein source for aquafeeds. According to some authors, biofloc’s crude protein content ranges 35.0 to 50.0%, and its crude lipids represent 0.6 to 12.0% of volume. Biofloc systems offer stable and sustainable production, as they support selfnitrification within fish or shrimp culture ponds with zero water exchange. In biofloc systems, algae develop first, followed