piratepupTn Posted July 22, 2016 I am wanting to setup an aquaponics system with fish I can enjoy. I love the look of comets and wouldn't mind giving a home to some feeders. I am going to be using a large stock tank that has to be about 300 gallons. I don't want to risk over crowding. I want the fish to be able to reach their maximum size. How many fish would be safe? Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
jmetzger72 Posted July 22, 2016 We recommend 20 gallons per fish. If the stock tank is indeed 300 gallons, then you could have up to 15 Goldfish. http://www.kokosgoldfish.invisionzone.com/forum/index.php?/topic/121320-kokos-goldfish-forum-guidelines-for-healthy-goldfish/ Quote Share this post Link to post Share on other sites