This method surely profitable and and produce better culture than pond . Although biofloc fish farming is okay for almost every varieties of fish but it's best for fishes which grows in span of 5–6 months.

One unit of Bio-floc system consists of 25 tanks of 4 diameter and 1.5 Metre height/depth with a unit cost of Rs. 25.00 lakh including inputs.

Its all about the whole method from seeds to matured fish..it varies from fish to fish .. i.e. Tilapia seeds are easily available and survival rate is also good so this fish is quite famous for biofloc tank. For 10k liter capacity means 10 cubic meter area tank you can cultivate near 4000 nos of tilapia seeds.

1. 
   
   Let us look at some fish that adapt best to the biofloc method and give high quality yield in the BFT environment for you biofloc fish farm.
   • Tilapia. Tilapia is one of the herbivorous fish varieties that is one of the best adapted species to the BFT system. ...
   • Salmon. ...
   • Shrimp and Prawns (Crustaceans) ...
   • Catfish. ...
   • Carp. ...
   • Trout. ...
   • Bass.

Biofloc fish farming has become a popular and potentially lucrative technique of fish culture due to its low investment cost and high return ensuring a good profit in a single harvest.