Located at 41679 Johnston Ave, Hemet, CA. Diamond Cove Koi & Water Plant carries a large selection of fresh water and salt water fish, aquariums, pumps, tank lights, fish tank heaters, and much more. Drop by to see for yourself. For questions regarding Diamond Cove Koi & Water Plant contact us directly at Charlene Ward, Owner of Diamond Cove Koi & Water Plant on the following numbers, or find the appropriate contact on the homepage of Diamond Cove Koi & Water Plant.