The saltwater aquarium hobby is chugging along and with it, some very old aquarium veteran fish are continuing to thrive, many of which are older than our youngest aquarist. So anytime someone s…
Saltwater Fish
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 extre…
Great New Pictures of BLUE Queen Angelfish from St. Paul’s Rock
The Queen Angelfish is one of the most iconic reef fish in the Caribbean Sea. It’s appearance has some regional variation throughout its range from Florida to Brazil, but there’s one place…
We Get A New Species AND Genus With The Description Of Cymatognathus aureolateralis
Today’s newest species of marine fish comes from very deep reefs of Indonesia, but it was discovered in a very peculiar way. Cymatognathus aureolateralis is a new species of anthias which i…
The Painted Face Dwarf Goby Is Your New Nano Species Of The Day
With new descriptions almost every week, sometimes it’s hard to get excited about new species of nano gobies, especially Eviota. However today’s newest entry into the tree of lif…
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 a…
New Fire Goby Was Lionfish Food Before It Was Ever Discovered!
Palatogobius incendius is a new species of deepwater Caribbean goby that was discovered, unsurprisingly, in the mesophotic reefs of Curacao. But what is surprising is the circumstances surrounding how…
Mythical Linespot Triggerfish Appears At ACI Aquaculture
Once upon a time, the goldenback triggerfish was the holy grail of this special group of marine fishes, but that title has been usurped by another, more illustrious species, the linespot triggerfish.&…
New Damselfish Species Cares For Offspring Like A Cichlid!
Altrichthys alelia is a newly described species of damselfish from the Philippines with a curious behavior that is more like freshwater fish than one living on a reef. You could be forgiven for mistak…
Paracheilinus hemitaeniatus, the Holy Grail Flasher Wrasse Being Collected in Madagascar
Paracheilinus hemitaeniatus, the half-banded flasher wrasse is a very elusive species that has been all but absent in the aquarium hobby. Hailing only from Madagascar and a few locations in South Afri…