butterflyfish

Audible for Fish? 10 rare or beautiful fish that would have made this gag better

In case you missed it, yesterday was April Fool’s Day and there were many corporations and tech companies sharing some serious groaners with a few funny ones in the mix. The one that caught our attention was Audible’s attempt at…

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.…

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…

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…

Mitratus Butterflyfish In The Shape of a Burgess, Or The Other Way Around?

But man, what a brilliant yellow specimen it is! Burgess butterflyfish usually¬†have a mostly black back, black crown and black eyestripe but the Aqua Gift Burgess Butterflyfish is throwing out extra yellow all over the place. Not only is the…

Prognathodes basabei, or orange margin butterfly, now officially described

Although known to exist for over 20 years and even referenced quite a few times here at Reef Builders, a new species of deep-water butterflyfish from the mesophotic reefs of the Papahanaumokuakea Marine National Monument was finally described today by…

First Video of the Unique Copperband Butterflyfish of Raja Ampat

Chelmon rostratus, aka the Copperband Butterflyfish is an extremely beautiful fish, and by far one of the most common and popular species of butterflyfish in home aquariums, and on the reef.¬†Earlier this year we told you about our travels and…