Betta Fish Diseases O?dinium pilularis (Velvet) Parasitic Also known as, Rust, Gold Dust Disease, O?dinium, Velvet Description: O?dinium is one of the more common diseases in cultured fish. This tiny parasite is capable of decimating an entire fish population, usually before you realize what the problem really is. It strikes both fresh and saltwater fish equally. In freshwater fish Velvet is caused by either O?dinium pilularis or O?dinium limneticum. In marine fish O?dinium ocellatum causes Cor…
Betta Fish Care