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Prawn Farming - Productivity Trial


(not documented)

Project lead


(not documented)




On-ground work

Case study type


Funding source

(not documented)

Funding amount


In-kind contribution

(not documented)

Start date

5 January 2018

End date



Reduction of ammonia and nitrate in prawn ponds to assess the increase in prawn productivity and harvest weights.

Funding amount for this project is provided on a per pond season basis.


Reducing blue-green algae cell counts, and ammonia levels, improves the water quality for prawns and should improve growth. In addition, diatoms growing in flocs in the ponds are a suitable food source for prawns so this should improve harvest weights.


The improved water quality in ponds was notable but there was a need to supplement the reactive silica levels in the pond water.  As brackish water in ponds is not high in silica, supplementation is necessary.  The data obtained to date indicates that the return on investment of increased silica and Diatomix use in ponds is about 700% in regards to increased harvest weights.

Reference ID


Last updated: 20 September 2018

This page should be cited as:

Department of Environment, Science and Innovation, Queensland (2018) Prawn Farming - Productivity Trial, WetlandInfo website, accessed 18 March 2024. Available at:

Queensland Government
WetlandInfo   —   Department of Environment, Science and Innovation