I have to correct myself. I found further information that suggests a 180grams of feed per day per m2 of polystyrene raft. This changes the equation which I have done below based on commercial barramundi feed.
So the other numbers must relate to plant nutrient requirements for the UVI.
Back to Marburg. The biofilm on the rafts will deal with 5.1kg feed per day total. If the feed rate is 2% (varies on age) the total fish weight for the system is 255kg (25kg/m3). Still a long way from a commercial environment.
Keep in mind this is based on the information provided and the research conducted on the UVI system using formulas the designer of the UVI will have used.


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