Flo-Gro Systems

Recirculating Aquaculture Systems

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Nitrate

Nitrate Removal

Removal of nitrate is an important process because it reduces the pressure on the first stages of the filtration system, allows high protein diets to be used , resulting in increased yield per unit volume and allows cash crops to be grown in the same footprint.

We have developed an algal bio-bead system that is extremely efficient at removing all major nutrients, including nitrate and phosphate, and also reduces trace elements derived from fish feed residues.  The algal bio-beads  can be used in fresh and slat water, increasing the range of species grown in in tank systems. 

Algal bio-beads are effective at a bead density of between 5000 and 10,000 per litre, with complete removal nitrogen compounds in cycle times of 3-4 days at  maximum fish stocking densities. Algal biobeads are stable in deionised water for 9 - 12 months and can be sent back to Flo-Gro Systems  for regeneration. 

Cash Crops

High value cash crops such as Watercress, Tomatoes, Lettuce and other salad crops can be grown in the system on a rapid turnover time, producing small quantities for local restaurants, markets and other outlets.

Contact: Jonathan  for details...

 C/o Vines Farm, Cane End, Reading, Berkshire, RG4 9HE, UK

Tel: 0118 972 4041    Fax: 0118 946 4894   Email: jonathan@flo-gro.co.uk