COST Action FA1305 ‘EU Aquaponics Hub’ is looking for PhD and/or postdoctoral researchers who are motivated, committed to innovative research and who are interested in conducting an in-depth experiment focusing on managing nutrient levels in aquaponics. This research will also investigate closing the nutrient loop by reusing fish sludge. The work will furthermore involve microbiological profiling and the detection of root and plant diseases that may occur in the systems.