Check the listing for details. 500 ML OCEAN FREE AROWANA SPECIAL VITAMIN COMPLEX. Condition: New. Listed at 22.00 USD. To keep an arowana is actually not very difficult. However, to bring the color and maintain the good health of this majestic fish pose a diffrent challenge. Ocean Free (an established breeder of the Asian Arowana) has worked closely with arowana farms to come up with this product. WIth laboratory tests to assess the efficacy of this product, this is the best vitamin complex available in the market for not only the Asian arowana, but also South American and Australian arowanas. With trace elements and calcium added for bone development, this product: . improves the arowana color, shape, and health . improves immune system and increases disease prevention . increases arowana's appetite and relieves new tank syndrome for new fish . provides the arowana with trace elements, minerals, and essential vitamins . 500 ml bottle treats 5000 liters! OCEAN FREE IS A BRAND THAT SPECIALIZES IN AROWANA PRODUCTS SINCE THEY ARE ONE OF THE BIGGEST BREEDERS AND EXPORTERS OF THE PRIZED ASIAN AROWANA!!!