Dymax Vibrant is an essential liquid supplement for Cichlids. It contains vitamins A, D, E, B1, B2, B5, B6, and B12, as well as calcium, magnesium, iodine, potassium, and iron, which promote immunity, metabolism, vitality, and growth. This 16.9 fl oz (500ml) bottle restores sunken stomachs and enhances fish color. Trace elements are also included for increased immunity and healthier fish growth. Please note that this product is not recommended for marine or reef aquariums.