This study aimed to evaluate the effect of different carbon sources, at two fertilization doses, on water
quality and shrimp performance in a biofloc system. To accomplish this, marine shrimp Litopenaeus
vannamei post-larvae (PL17) were cultured in intensive (150 animals m−2) zero water-exchange biofloc
technology (BFT). The experiment was conducted during 39 days, and 12 tanks (0.85 m3) were used.
Treatments consisted of two sources of organic carbon, rice bran (RB) or molasses (MO); each supplied
at two rates (25 mg L−1 and 100 mg L−1 of total suspended solids).