Also Known As: Saddle Butterflyfish, Blackback Butterflyfish Compatibility and BehaviorThe Saddleback Butterfly is a high-contrast beauty, pairing a tan and yellow body with a bold dark "saddle" across the back and a distinct black facial mask, and that contrast only sharpens as the fish matures and shows off under reef lighting. The tall, laterally compressed body and easy, graceful swimming style make it an elegant presence in a larger FOWLR or reef-inspired display. Temperament tends toward peaceful with dissimilar tankmates, and it does well alongside calm tangs, wrasses, and Anthias when introduced carefully, though it may get mildly territorial with other butterflies or similarly shaped fish in smaller systems or where rockwork is limited. As with the family generally, treat it as reef safe with caution: while foraging it may nip soft corals, LPS, zoanthids, and clam mantles, which makes it a better fit for a FOWLR or a carefully planned mixed reef than a prized coral system. Aquarium RequirementsGive this one a mature tank with plenty of open swimming room and live rock to graze and shelter in. Small individuals around 1.5 to 2 inches make a practical start in a 75 to 90 gallon tank, while medium and large specimens do best in 100-plus gallon systems with strong filtration and a long footprint. Provide moderate, well-oxygenated flow, stable water quality, and structured rockwork with open lanes so it can cruise comfortably and slip away when startled. Diet is your best tool for easing pressure on corals: a varied menu of mysis, finely chopped seafood, quality marine pellets, and frozen omnivore blends keeps the fish in good condition and takes some of the edge off its interest in sessile inverts. SpecificationsApproximate Size: Sm: 1.5–2", Md: 2.5–3", Lg: 3–4"Diet: Omnivore; mysis, finely chopped seafood, plus quality marine pellets and frozen blendsOrigin: Indo-PacificCare Level: IntermediateReef Safe: With cautionTemperament: Peaceful to semi-aggressiveMinimum Tank Size: 75 gallons for small specimens, with a larger system required as it growsSpecial Considerations: Reef safe with caution, as it may nip soft corals, LPS, zoanthids, and clam mantles, so best in a FOWLR or coral-cautious setup; can be territorial toward other butterflyfish and similarly shaped fish
