Semilarvatus Makes One of the Rarest Butterflyfish Hybrids

It’s been a long while since we’ve had a fun butterflyfish hybrid to share with you but what’s cool about this specimen is that it is an aquarium established fish. The parents of this outbred fish were Chaetodon lineolatus and C. semilarvatus,…

Prognathodes geminus is the Newest Species of Butterflyfish

Prognathodes geminus is the newest species of butterflyfish from a genus that haunts the abyssal depths of the oceans. Closely related to Prognathodes guezei and P. basabei, the new ‘Gemini’ butterflyfish is so named for its very close resemblance to other members…

Interesting Ecology Shift of Blacktail and Orangeface Butterflyfish

Saltwater fish are among some of the most colorful creatures we can keep as pets but as many species as we have access to, one notable group is a sort of ‘forbidden fruit’ when it comes to living in aquariums.…

Butterflyfish Pairs Must Work Together To Defend their Food

Pairing and monogamy is nearly always associated with sex and reproduction but it turns out that some species of butterflyfish have a different reason to pair up. Competition on tropical reefs is intense for virtually all resources, and there’s always…

Roa rumsfeldi Is A New Species Of Butterflyfish From The Philippines!

Roa rumsfledi is an exciting new species of butterflyfish from a genus that doesn’t get nearly enough attention. Before today the Roa butterflyfish consisted of just four species which all have a high body profile and a pattern of alternating…

Chaetodon argentatus Butterflyfish Hybrid Spotted in Japan

So many times when we see aberrant or hybrid reef fish it’s in the setting of an aquarium livestock dealer. So it’s always a nice surprise to see some of these animals being spotted in their natural environment, and GT…

Semilarvatus Butterflyfish Hybrid Is An Extra Rare Specimen!

When it comes to hybrid reef fish, angelfish crosses are very stunning, but butterflyfish hybrids are more nuanced, and highly desirable. Some butterflyfish hybridize more often than others, but this is the first time we’ve reported on a hybrid of…

Oblique Butterflyfish Is The Coolest Fish You’ve Never Heard Of!

The Oblique Butterflyfish, Prognathodes obliquus, is a rare species from St. Paul’s Rock in the middle of the equatorial Atlantic Ocean. Although few mere mortals ever make it to this extremely isolated rocky islet, thankfully super-scientists like Dr. Luiz Rocha always…

Rare Spotfin x Foureye Butterflyfish Hybrid Collected By Dynasty Marine

A very rare hybrid of the spotfin and four-eye butterflyfish was recently collected by Dynasty Marine in South Florida. The hybrid specimen shows an appearance with a near 50/50 split in the features of its parent, resulting in a ghostly…

Wild Wiebeli X Raccoon Butterflyfish Hybrid!

Butterflyfish are some of the most iconic species of reef fish, it’s always a nice treat to see unusual species, and hybrids of Chaetodon. Today we have an example of both, a hybrid of the rarely seen Chaetodon wiebelii butterflyfish.  This specimen…