Gold Crown Butterflyfish variant shows up in Japan

Following up on the story we posted several days ago regarding the gold crown butterflyfish, Chaetodon (Roaps) flavocoronatus,  as we expected at least one of these specimens has shown up for sale in Japan. However, in contrast to the nearly…

The Golden Hamlet is one of the crown jewels of Caribbean reef fish

As close as we Americans live to the Caribbean Sea, we are woefully under-informed as to the wealth of beautiful corals and reef fish that live there. Case in point is the jaw-dropping gorgeous golden hamlet, Hypoplectrus gumigutta which Japanese and…

Rare Golden Hamlet makes its Way to the Reef Builders Studio

The Golden Hamlet, Hypoplectrus gummigutta, is one of the most striking small fish of the Caribbean, and it also happens to be one of the most elusive. We have revered this fish for over twenty years and during that time…

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…

Chromis sahulensis & C. norfolkensis, Two More New Damselfish Species

Chromis norfolkensis and C. sahulensis are two new species of one of our favorite group of reef animals, the damselfishes. Like several of the most recently described species of Chromis especially, the new species have been teased apart from other common and well…

The ‘Fiji’ Yellow Leather Coral, Sarcophyton elegans

The ‘Fiji’ Yellow Leather is a living conundrum of a coral that is readily available in the hobby, but somehow also seems a little inaccessible. Contrary to most leather corals, there is a consensus that this yellow toadstool coral is…

Top 10 New Products of 2018

There’s never been a better time to be a reef aquarist than right now as all the gear is getting better, smarter, more efficient and dare we say a whole lot more fun! This constant wave of new reef aquarium…

Aquarium Glossary

The Aquarium glossary is part of the best reef tank guide from Reef Builders. Are you interested in starting a saltwater tank? This guide covers everything you need to know. Acclimation The process in which the water an organism comes…

Caribbean Coral Diaries: Acropora palmata

Acropora palmata Acropora palmata is the king of all Caribbean corals. Acropora palmata grows into thick robust branches and is the most important reef-building species in the Caribbean. Like it’s thinner cousin, Acropora cervicornis, palmata colonies provide complex habitat for juvenile fish. As…

Arabian butterflyfish eating prepared food on video

The Arabian Butterflyfish is a piscine so stunningly gorgeous, but we daren’t look directly at it lest we succumb to its spell. Among the thousands of reef fish species, there is a certain group of extremely beautiful butterflyfish which are…