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Merten's Pearlscale Butterflyfish
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Product Code: RNC-00724 Available To Order
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Merten's Pearlscale Butterflyfish

Chaetodon mertensii
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Merten's Pearlscale Butterflyfish also known as the Fiji Pearscale Butterflyfish, Orangetail Butterflyfish or Crowned Pearlscale Butterflyfish are found around East Africa, Ryukyus, Lord Howe Is and Rapa Islands.

Livestock arrives in and out of stock very regularly, depending upon availability of the item from the source. The more rare and expensive items are often difficult to hold in stock, and can take time to source, so we generally require a deposit to locate and purchase the extremely rare items
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The Mertens Butterflyfish is a blue silver coloration with black margins on its body scales. This gives a crisscross pattern and pearly sheen. Most of its posterior is orange and it has a silver-edged black stripe through the eye. They do well in an aquarium providing that it is well-maintained and relatively peaceful.

The Mertens Pearlscale Butterflyfish is part of the "xanthurus complex" consisting of lookalike species with similar latticed pattern. The Mertens Pearlscale Butterflyfish is a great example of a lookalike. The Crosshatch Pearlscale Butterflyfish is distinguished by a white-rimmed, dark oval spot located slightly askew behind the eye band. Also, upon careful observation, the Crosshatch Pearlscale Butterflyfish has a true reticulated (net-like) or crosshatch pattern while the lookalikes have a distinct chevron or V-shaped pattern.

It may be kept with other Butterflyfish if they are introduced to the tank at the same time.

The Mertens Butterflyfish is not considered reef safe.

The diet of the Mertens Butterflyfish should include various chopped meaty preparations.

Minimum Aquarium Size

200 L

Max Size

12.5 cm

Reef Safe











Wild Caught



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