Sera 100ml Immunpro Nature 45g Probiotic Growth Food for Ornamental Fish Granule is a high-quality fish food that is designed to promote the growth and vibrant coloration of ornamental fish.�It is a probiotic growth food for ornamental fish that are over 4 cm in size.�The probiotics are added to the food in a special process that stabilizes the intestinal flora of the fish and ensures that the water is less polluted due to more efficient food utilization.