Blue Neon Velvet Damsel (Paraglyphidodon oxyodon) is black with neon blue stripes with a vertical white line through its body. These colorations are most pronounced as a juvenile, but as the fish ages, these markings change to a less colorful blue stripes and white lines. The Neon Damsel grows up to 6 inches. Minimum Tank Size: The Blue Velvet Damsel prefers a tank of at least 30 gallons with plenty of places to hide & swim. Diet: The Paraglyphidodon oxyodon is a omnivore and likes to eat variety of foods (meats & veggies). The Blue Velvet Damsel may act aggressively toward other fish. Also known as: Neon Damsel, Blue Streak Damsel