2018-10-292018-10-292008p. 157-170. In: Elghobashy, H., Fitzsimmons, K., Diab, A.S. (eds.) Proceedings of 8th International Symposium on Tilapia in Aquaculture, Cairo, Egypt, 12-14 Oct 2008. Vol. 1 [open access]https://hdl.handle.net/20.500.12348/1551The effects of fertilizer types and stocking density were investigated on water quality parameters that expected to affect growth performance of the polyculture of Nile tilapia <i> (Oreochromis niloticus) </i>, African catfish <i> (Claris gariepinus) </i> and sliver carp <i>(hypophthalmichthys molitrix)</i>. The purpose of this study was to determine the best type of fertilizer to use and stocking density to apply which maximizing fish yields while minimizing expenses and environmental degradation.application/pdfInfluence of fertilizers' types and stocking density on water quality and growth performance on Nile tilapia African catfish in polyculture systemConference Paper