Biofloc Fish Farming - vs - traditional fish farming

Submitted by admin on Fri, 07/03/2020 - 10:07

Biofloc  is an innovative and cost-effective technology where fish can be produced, without a traditional pond, in a makeshift tanks - e.g. plastic or turpentine  and iron frame etc. The tank holds water without leakage and there is a mechanism to drain out water at regular interval.

biofloc setup fro pilot

In Biofloc fish farming toxic materials to the fish and shellfish such as Nitrate, Nitrite, Ammonia can be converted to useful product, ie., proteinaceous feed. It is the technology used in aquaculture system with limited or zero water exchange under high stocking density, strong aeration and biota formed by biofloc.

The principle of this technique is the generation of nitrogen cycle by maintaining higher C: N ratio through stimulating heterotrophic microbial growth, which assimilates the nitrogenous waste that can be exploited by the cultured spices as a feed. The biofloc technology is not only effective in treating the waste but also grants nutrition to the aquatic animal.

Market Opportunity: The Problem and its Size

  • There is a huge deficit of fish production in the state of Meghalaya. The state has been able to produce only 8,000 MT of fish annually against the demand of over 30,000 MT. Deficit- 22,000 MT (Co-Chairman Meghalaya State Planning Board Mr. John F Kharshiing- The Shillong Times 18th September, 2017 & 18th July, 2018)
  • The supply deficit of 22,000 metric tonnes opens up a huge market potential for aquaculture in Meghalaya along with green agriculture.
  • The total addressable market (TAM) : Rs. 200 ~ 350 Cr. Annually.
  • Imported fishes from Andhra Pradesh have recently been found to lace with toxic preservatives.
  • In 2018, Meghalaya govt. imposed a ban on fish import for 30 days after lab tests revealed presence of formalin, a highly toxic preservative which is injurious to health- (Economic Times, Indian Express, Hindustan Times etc.- 24th and 25th July, 2018.)
  • “Fish crisis/ shortage in Meghalaya” – Business Standard 26th April, 2019 Meghalaya Govt. to invest Rs. 378 Cr to Augment Fish Production in state.

Biofloc Technology

Green technology for  Self Sustainability, Protect Environment and Entrepreneurship

  • We propose to implement Biofloc Technology, an innovative and cost-effective technology in which toxic materials to the fish such as nitrate, nitrite, and ammonia are converted to useful product, i.e., proteinaceous feed. 
  • Biofloc technology is a limited or zero water exchange green technology for high density aquaculture.
  • The discharge from the system can be used as bio-fertilizers for cultivation of crops.
  • The technology will be useful to ensure bio-security, as there is no water exchange except sludge removal. 
  • The technology is economically viable, environmentally sustainable, and socially acceptable
  • Production cost 30 -40% less compared to conventional pond culture because of being less labour intensive, reduced feed wastage and better food conversion ratio (FCR).

Current Scenario & why Biofloc Technology is a Better Alternative

  • The state being deficit in fish production, people are mainly dependent on fishes imported from Andhra Pradesh, Assam and Bengal. (Meghalaya Govt. & leading newspapers)
  • This deficit can be addressed by adopting Biofloc Technology. The advantages of the Biofloc Technology over conventional pond culture technology are as follows:

Biofloc Culture

Pond Culture

Low Set up cost

High set-up cost

Eco friendly Green Technology

Use of fertilizers and artificial hormones

High density culture

Low density culture

7 ~ 8 times more yield compared to pond culture

Low yield and irregular

Quantity of feed required 50% Less

Wastage of feed and material

Easy to control water parameters (pH, TDS etc.) due to controlled environment

Difficult to control water parameters in open ponds leading to poor yield

Low labour costs

Labour intensive leading to high labour cost

Practically no disease in biofloc

Susceptible to diseases and poor nutrient yield

No effect of natural calamities

Susceptible to natural calamities such as floods

Fish varieties grown in Biofloc

Catfish (magur), Singi, Tengra (singora), Pabhda, Tilapia, Koi, pangasius,etc.


Robust team promoting a scalable business

  • The team of Angel Production and Events comprises practicing Biofloc experts, Biotechnologists and Fishery experts. 
  • Experts from North Eastern Hill University (NEHU), Shillong, Meghalaya
  • Entrepreneurs and Businessman interested to produce and market the produce 
  • Experienced with successful culture of different fish species- Pilot Studies already completed.
  • The proposed business model is scalable.

    Progress made to date:

  • Extensive study and hands on training on Biofloc Technology .
  • Assisted in 2 batches of culture of Desi Magur and Vietnam Koi.

Vietnamese Koi growth chart
Vietnamese Koi growth chart

Pilot Biofloc Culture & Harvesting Snapshot

To collaborate for biofloc cluster setup, please get in touch with us:

  1. S N Sangma, Bishnupur,Shillong. Tel: 9706542016. Email:
  2. Dr. Dinesh Bhatia - Biomedical Engineering Department, NEHU, Shillong.

EChamp Meghalaya


echamp meghalaya 2019


Dr DInesh Bhatia