3-4cm odessa barb. Water Quality: Will require a water temperature of 15° - 25° C and a pH of 6.0 - 7.0. Compatability: Can be kept with a variety of other species and will feel more secure in a group. Avoid larger slower moving species with long fins. Diet:As a Omnivorus species a mixed diet including meat based and vegitable matter for optimal nutrition. You can get food with these ingredients such as flake, small pellet, wafer mix and frozen or live food. The Odessa barb is a species of cyprinid fish known from Central Myanmar, where it is known to occur in an artificial pond above the Anisakan Falls and also from the lower Chindwin River.