Is a special formulation for all carp fish Daliy Use Formular which spirulina 3 % suitable for carp fish to help your carp maintain bright coloration. Ergo Design elliptical shape conforms to the fish's mouth shape and esophagus making it very easy to capture and swallow. Decrease head and bone deformities, and prevent “plump fish” conformation by reducing fat deposition. Complete nutrition and Vitamins Non Water fouling