With its bright yellow body accented with an alluring purple mouth and prominent black spot on its forehead, the Flagfin Angelfish makes a captivating addition to any reef tank. Due to the presence of spots, it is also commonly called the three-spot angelfish. The Flagfin Angelfish should be housed in an aquarium with plenty of room to swim, and should be kept in a tank not less than 100 gallons. It grows up to 8 inches in the wild but is imported much smaller, and tends to cruise around in the lower portion of the tank, swimming in and out of caves. Since the Flagfin Angelfish may nip at corals and clams when hungry, it is considered reef safe but with caution. It is semi-aggressive in nature and is difficult to keep that is why it is only suggested for an experienced aquarist. The Flagfin Angelfish is considered extremely timid and can easily be stressed, but you can help it to acclimatize by providing sponges until it learns to eat new foods. It can be kept in a community tank and even mixed with other angelfish if the aquarium is large enough. The Flagfin Angelfish requires rockwork creating lots of caves for refuge, a lot of open swimming area, and tank mates that are peaceful. You can introduce live mysis shrimps or live brine shrimp to initiate a feeding response, and the prepared frozen foods with spirulina, foods with sponge material and algae sheets as well. It thrives well in a temperature range of 73-84 degrees Fahrenheit, pH of 8.0-8.4. It is compatible with tangs, large angels, large wrasses, lionfish, groupers and soapfish.