The research was conducted from May to July 2016 in Aquaculture Technology Laboratory of Fisheries and Marine Science Faculty of Riau University. The method used is an experimental method, with Completely Randomized Design (CRD), and three levels of treatment. The treatments used the vitamin C APM (Ascorbyl Phosphate Magnesium) gives the doses diffrentiation, that were P1 (doses of vitamin C 0 …