Koi fish release ammonia while in the h2o. When big amount of koi fish inhabit same pond, level of ammonia can increase speedily and induce poisoning of fish. We use cookies to enhance your on line working experience. To accept these cookies proceed browsing as standard. Read through our cookies http://travisnruvx.ampblogs.com/koi-for-sale-Things-To-Know-Before-You-Buy-37815196