This study was carried out to evaluate the combined effects of four background tank color and two stocking density on growth and survival rate of stripped catfish Pangasius hyophthalmus larvae reared with a water recirculation system. The fish larvae (0,002 g) were reared in aquarium with white, black, Blue and clear backgoround at two stocking densities of 5 fish/L (75 fish/aquarium) and …