This study evaluated the effects of commercial diets supplementedwith 0%, 3%, 6%, 9%and 12% red yam flour (Ipomoea batatas L.) on the growth, survival rate and skin colour of goldfish (Carrasius auratus). A completely randomized experimental design was developed with five treatments and three replicates. Seventy-five goldfish with the average initial length of 4.4 cm were assigned to fifteen experimental tanks. The experiment had lasted for twenty-eight days. The results showed that the growth and survival rate were not significantly affected by dietary treatments (P > 0.05). However, red yam flour significantly affected the skin color of goldfish with the best concentration of 9%.It was concluded that the dietary administration of red yam flour of 9% was found to be a suitable dietary supplementation to ensure skin pigmentation as well as there were not bad effects on fish growth and survival rate.