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KaiTheFishGuy
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Kai is a systematic ichthyologist at The Australian Museum, Sydney. His research interests combine the use of cutting-edge next generation sequencing techniques with traditional methods of morphology to better understand the evolutionary history of coral reef fishes. He is a legacy ReefBuilders contributor, having previously written close to give hundred articles under his pseudonym LemonTYK.

Genicanthus semifasciatus angelfish makes a surprise appearance in large numbers

Genicanthus semifasciatus is perhaps the rarest of the obtainable six species of swallowtail angelfishes that make up part of the Genicanthus genus. The other four members are extremely rare and conventionally unobtainable to the average aquarist, perhaps with the exception…

Aberrant pink-spot firefish is both unique and spectacular

The firefish, Nemateleotris magnifica, is a staple beauty in the aquarium industry – aberrant firefish however, are not. Having seen hundreds of firefishes all resembling cookie cutter clones of each other over the years, this is the first time that…

Meet the real sailfin jawfish, Opistognathus fenmutis

Remember those awesome Sailfin Jawfishes that we posted not too long ago? Apparently, the original identification of O. lonchurus given was rather dubious and incorrect. These fishes are rarely seen in the wild and supplied to the trade, with very…

Stunning male Tosanoides filamentosus for sale in Japan

Japan has once again, secured the rarest of the rare. This time, its a pair of Tosanoides filamentosus. The 8cm stunner shown above is a young male specimen, caught together with its 6cm female partner. The rarity of this fish…

New undescribed Pseudojuloides slender wrasse for sale in Japan

The gorgeous slender wrasse above is a brand new species which has not been seen before, and which is being offered for sale in the Japanese market. It’s not everyday that a spanking brand new undescribed fish hits the market…

Dramatic orange and black coral beauty angelfish looks like it went through photoshop

When it comes to aberrant fishes, it’s always a hit and miss with each individual person when it comes to beauty. What may appear to be extraordinarily beautiful, may appear hideous to another. The above coral beauty (Centropyge bispinosa) that…

Cebuan rarities band together for one exciting shipment

[youtube]http://www.youtube.com/watch?v=6QUbqPbcDxQ[/youtube] A large shipment of cool reef critters was recently imported to Singapore which included a menageries of rare reef fish and a wunderpus. The above video of the Wunderpus clearly shows the amazing colour and banding patterns associated with this…

Xyrichthys pentadactylus, just one of the many Razor fishes out there

Xyrichthys pentadactylus is one of many species of razor fish, or more commonly known as razor wrasse. Razor wrasses are adapted to life on open sandy reefs, and all possess highly compressed bodies which look paper thin from the front,…

Chaetodon assarius, a rare butterflyfish from down-under

Chaetodon assarius is a rare, shallow water planktivorous butterflyfish native to the waters of Western-Australia. The lovely fish is closely related to and looks similar to various other species found around the world, such as C. dolosus and C. sedentarius.…

Centropyge madness hits several Japanese LFS

The local fish stores of Japan are once again in the spotlight as they chaperon a new batch of very unusual Centropyge pygmy angelfish. The fish shown above is a very unusual dwarf angel brought in by B-Box Japan. We’re…