New Acropora is among ten new species of stony corals discovered in Papahanaumokuakea, Hawaii

New Acropora species are not discovered very often so it was with great excitement that we came to learn that a recent biodiversity survey in the Northwestern Hawaiian Islands discovered a new Acropora species from Papahanaumokuakea. If you’ll recall, last…

Blue Harbor’s incredible rare fish menagerie on captured on video

Every time we see something new from Japan’s Blue Harbor, we want to grab the passport and jump on a plane to check out this place in person. Reef Builders’ own Taka Kamata shared this link with us of some…

Nest of rare chain cat shark eggs fished up from over 800ft deep

Justin Perlow is a rare fish enthusiast who previously shared with us his yellow anthias and orange-margin butterflyfish. This time J-dog is back with an awesome story of how he came to own possibly one of the coolest, aquarium-suitable sharks…

French Butterflyfish, Prognathodes guyanensis available for the first time from LiveAquaria, hybrid coming soon

The French Butterflyfish, Prognathodes guyanensis, is an extremely rare deepwater Caribbean butterflyfish which has very seldomly been collected for the aquarium trade. Most fish books list this species as being widespread in the Caribbean and absent from Florida, but recently,…

New Butterflyfish discovered in Papahanaumokuakea Marine National Monument

Papahanaumokuakea National Marine Monument has just yielded a new species of butterflyfish which appears to be very similar to Prognathodes basabei. The new butterflyfish was discovered by self professed fish nerd Richard Pyle using his signature rebreather deep diving techniques.…

Rare Butterflyfish Parade: Roa excelsa, Roaps flavocoronatus and a new Roaps tinkeri hybrid

Not sure what is in the air lately but have we got the goods on a nice handful of uber rare butterflyfish fish for you. Hot on the heels of the orange margin butterflyfish, Prognathodes basabei, we have an odd-phase…