The Golden Semilarvatus Butterfly, Chaetodon semilarvatus, is commonly referred to as the Golden Butterflyfish, Yellow Butterflyfish, Bluecheek Butterflyfish, Redlined Butterflyfish, Addis Butterflyfish, Red Sea Butterflyfish, Red Sea Butterfly Fish. It is one of the most elegant and rare butterflyfish species available for purchase in the marine hobby. With a stunning bright yellow body with delicate red striping and a beautiful blue mask-like covering over its eyes, the Golden Semilarvatus Butterfly is unparalleled in its beauty by other Butterflyfish. Overall, this butterfly is really extraordinary. Without a doubt it would be the show piece in your aquarium and provide your tank with a large splash of beauty and rarity. They can grow up to 9 inches and should be kept in a tank no less than 100 gallons if kept individually, and no less than 130 gallons of kept in a pair. They can also be kept in a group, in a much larger system. If keeping more than one, it is best to add them to the tank at the same time to avoid aggression. The tank should have plenty of live rock creating caves and crevices, allowing the Golden Semilarvatus Butterfly ample places to hide. Though not a very quick swimmer, it swims freely and usually spends a good deal of its time in the open water, gracefully swimming about, being more active during the day. The Golden Semilarvatus Butterfly is a peaceful species, and should be kept with other peaceful species, though they can become aggressive towards other Butterflyfish. They are not considered reef safe, as they will pick on Sessile Invertebrates and Coral Polyps, and best kept in a Fish only tank. The Golden Semilarvatus Butterfly is quite hardy once acclimated. They should be fed an omnivorous diet, consisting of Brine and Mysis shrimp, finely chopped meaty foods like Clam, Crab, and Shrimp, also Spirulina, Japanese Nori and Zooplankton. Feeding 2 times daily for continued health. They will thrive in a temperature range of 75-80??F and a pH of 8.1-8.4.