Purina AquaMax® Sport Fish 600 is a 100% nutritionally complete and was developed by professional nutritionists and fish experts. Formulated as an easily-digestible, high-energy, nutrient-dense diet with excellent conversion rates, Sport Fish 600 has high feed efficiency and rate of gain and is designed to stimulate aggressive feeding behavior. AquaMax® Sport Fish 600 is a floating product in a in a 9/32″ extruded pellet.