We want to provide a total solution for ecological (and economic) production of shrimp. Shrimp will be produced with maximum efficiency of feed and minimum impact on the environment (no effluents) . This will be achieved by farming with zero exchange of water, by means of in-pond purification of pond water. Bacterial flocks will return in the pond and recycled by shrimp. This system can be used for ultra-intensive farming and in existing semi-intensive systems. On farm production of tailor-made, high quality feeds. Local (moist) ingredients will be used in the formula together with the necessary imported raw materials and concentrates. Different production systems can be used according to specific conditions on the farm. For small scale production, a cold extrusion system is developped. Focus on those feeds is not low cost, but maximum digestibility / production, and lowest feed conversion. Optimisation of feed utilization by close collaboration with the shrimp farmer for feed formulat