Buy Yellowtail Damselfish Online The Yellowtail Damselfish (Chrysiptera parasema) is a hardy and vibrant saltwater fish known for its electric blue body and bright yellow tail. It’s one of the best entry-level marine fish, offering strong color, durability, and active behavior while remaining more peaceful than most other damselfish species. Quick Care Facts Care Level: Easy Temperament: Semi-aggressive Diet: Omnivore Reef Safe: Yes Minimum Tank Size: 30 gallons Max Size: ~2.5–3 inches Origin: Indo-Pacific Shipping Size: 1–2 inches Behavior & Compatibility The Yellowtail Damselfish is known for being one of the least aggressive damselfish, making it a solid option for community reef tanks. However, it can still show territorial behavior, especially in smaller tanks or when competing for space. It does best with other semi-aggressive or peaceful fish that can hold their own without provoking conflict. Avoid housing with highly aggressive species or overcrowding the tank, as this can increase territorial behavior. Diet & Feeding Yellowtail Damselfish are omnivores and very easy to feed. They will readily accept: flakes and pellets frozen mysis shrimp brine shrimp general marine foods Feed 1–2 times daily. They are not picky eaters and adapt quickly to most feeding routines. Tank Setup A minimum of 30 gallons is recommended, though larger tanks help reduce territorial behavior. For best results, provide: Live rock for hiding and territory Open swimming space Stable water conditions Moderate water flow They will establish a small territory within the tank, especially around rock structures. Reef Safety The Yellowtail Damselfish is reef safe and will not harm corals or invertebrates. It’s a great choice for reef aquariums due to its durability and minimal impact on the system. Acclimation & First 48 Hours This is a hardy species that adapts quickly: Acclimate slowly to match water parameters Introduce into a stable tank Provide structure for territory They typically begin feeding quickly and settle in without issues.
