Two Different Half Black Surgeonfish Collected an Ocean Apart

In the early days of freshwater ornamental fish breeding, one of the first mutations that consistently appeared in high profile species like angelfish and discus was a half black trait that originated at the tail. It seems like this mutation…

First Gem X Scopas Hybrid Tang Collected from Madagascar

The gem x scopas tang hybrid that RVS Fishworld just showed off may not be the first one the aquarium hobby has ever seen, but it is the first one from Madagascar. Much like the circled dragonet we featured a…

Barcode Gem Tang Returns to Marine Collectors

Yellow tangs have piebalds, scopas tangs have koi variants, and now it seems that the highly desirable gem tang has its own variant called the Barcode gem tang. The barcode Gem tang is a special variant of the gem tang…

Three Of The RAREST Zebrasoma Videos: White, Gem and Tricolor Tangs!

With nearly three hundred videos on a myriad of topics, Reef Builders has one of the oldest aquariums channels on YouTube. In that time we’ve featured countless beautiful, rare and exotic animals, and today we want to revisit three of our…

Lined Gem Tang Is Truly One Of A Kind!

We’ve written so many cool stories about tangs and surgeonfish over the years – there must be a hundred articles on rare species, koi tangs, aberrations and hybrids. It’s definitely getting to the point where there’s not much we haven’t…

The speciation, biogeography and hybridization of Zebrasoma

The family Acanthuridae boasts of charismatic, charming and iconic reef fishes that are immediately recognizable both in the field and in the trade. All eighty or so species spanning the six various genera have a single unifying trait, and that is…

Second ever hybrid gem tang collected in Mauritius

The gem tang is arguably the most coveted of all surgeonfish species, making the first ever documented gem tang hybrid quite a sensation. Another hybrid gem tang has been collected and we have even better pictures of this stunning specimen…

Gem tang hybrid could be the rarest surgeonfish ever

If you thought a gem tang was rare, just wait until you get a good look at this very unique surgeonfish just captured in Mauritius. At first glance the little Zebrasoma looks like a scopas tang, Zebrasoma scopas, but upon further inspection this…

Tour de BlueHarbor – Part 2. Fixing a deepwater malady

This is the second and final installment to the two part BlueHarbor tour visit. In this article, we visit one of Koji’s customers with perhaps the biggest and most impressive collection of deepwater fish ever. Rare fish aficionados, you do…

Tricolor and gem tangs a plenty at Southwest Marines, UK

Southwest Marines was the first all marine aquarium store we visited in the UK and we must say it was quite a pleasant surprise to round the corner and spot LED lighting, two gem tangs, one tricolor tang (aberrant scopas)…