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Masked Swallowtail Angelfish – Genicanthus semifasciatus

Overview:
The Masked Swallowtail Angelfish is a striking reef-safe species, with males showcasing bold black vertical bars across a silvery body and females displaying a golden-yellow hue with a dark eye mask. Active, peaceful, and hardy, this angelfish is an excellent choice for reef and community setups.

Origin:
Native to the Western Pacific Ocean, particularly around Japan, Taiwan, and the Philippines.

Feeding:
Omnivorous — thrives on a diet of high-quality marine pellets, spirulina, mysis shrimp, brine shrimp, and chopped seafood, with frequent algae-based foods.

Tank Mates:
Ideal for reef and peaceful community aquariums, coexisting well with tangs, Wrasses, clownfish, gobies, and other non-aggressive fish.

Aggression:
Peaceful, can be kept singly, as pairs, or in harems in larger tanks.

Experience Level:
Best suited for intermediate aquarists, as they require stable, high-quality water conditions.

Water Parameters:

• Temperature: 72–78°F (22–26°C)

• pH: 8.1–8.4

• Salinity: 1.020–1.025

• Minimum Tank Size: 125+ gallons

Graceful, reef-safe, and community-friendly, the Masked Swallowtail Angelfish is a standout addition to large marine aquariums.

Above images for illustration purposes only. Exact colours, patterns, and size may vary between individuals.

Please note: The livestock that is sold on our online site is not held in store at our Swell shop, or available for collection from the shop. Species sold at our Swell store will differ from ones available to order to your door.

All livestock deliveries are subject to our full Delivery Terms & Conditions, please read before ordering.