Mertens Butterfly Fish Chaetodon Mertensii

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Mertens Butterfly Fish – Chaetodon mertensii

Overview:
The Mertens Butterfly Fish is a striking marine species, featuring a pale body with bold vertical black bands and bright yellow accents on the tail and fins. Its graceful swimming and unique coloration make it a captivating addition to reef and community aquariums.

Origin:
Native to the Indo-Pacific region, including Indonesia, the Philippines, and northern Australia.

Feeding:
Omnivorous — thrives on frozen or live mysis shrimp, brine shrimp, finely chopped seafood, and high-quality marine flakes or pellets, with occasional algae grazing.

Tank Mates:
Best suited for peaceful reef and community tanks, avoiding overly aggressive or nippy species.

Aggression:
Generally peaceful, though may defend small territories in confined aquariums.

Experience Level:
Recommended for intermediate to advanced aquarists, due to its dietary needs and sensitivity to water quality.

Water Parameters:

• Temperature: 74–80°F (23–27°C)

• pH: 8.1–8.4

• Salinity: 1.020–1.025

• Minimum Tank Size: 75+ gallons

Elegant, colorful, and eye-catching, the Mertens Butterfly Fish is a standout species for experienced marine hobbyists seeking a unique and visually striking centerpiece.

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.