Semi Bio Floc

Both biofloc and semi-floc have the same purpose – to manipulate the microbial interaction in the pond to create flocs. However, if biofloc relies mostly on heterotrophic bacteria, semi-floc combines a balance of autotrophic and heterotrophic organisms. Because of this, semi-floc requires regular siphoning to take out excess nitrogen, as opposed to relying on microbial decomposition by heterotrophic bacteria. Water exchange is also permissible, if required, but should be kept to a minimum.

In a semi-floc system, the bio-microfloc formation is driven by additional chemicals and microbial products or probiotics. In contrast with biofloc technology, semi-floc needs probiotic administration during culture in order to maintain a good FCR. The coating of Bacillus probiotics can help improve feed digestibility and absorption.