Possibly one of the most daunting things you can encounter is sudden silence from the reef tank when the power goes out. Or perhaps you know the power is going out on a particular day for scheduled maintenance? Whether the…
Off timing coral spawning spotted in South Sulawesi
How much do we really know about corals? The answer is: Not so much, actually. While the general rule for coral spawning is a few days after the full moon, 2 hours after sunset, just before the water temperature high…
Flashback Friday: All the Giant Clams of the World (So Far,) by Jake Adams
Those who knew Jake Adams knew that he had a fascination with Tridacna spp. Clams, and spent years seeking out, collecting, and writing about his favorite, beautiful bivalves. We remember when he messaged us in 2022 after procuring a Devil…
Grzegorz Grebosz’s Acropora are Probiotic Perfection
We admit to following and admiring this aquarium for a while, and although it’s existed in several guises since 2015, the bright, tabling acros and pristine, immaculately clean tank always manage to keep it looking like new. We caught up…
VarioS+ Controller will bring Wi-Fi Capability to Octo DC Pumps
Octo has just announced that it is making more of its products Wi-Fi controllable with the imminent launch of the VarioS+ Controller. Like the Octo Wave Controller, this slick-looking stand-alone box will provide power and control to existing Vario return…
Crazy Ludicrous Chalice in the wild!
Once in a while, you come across a coral during a dive, and you can’t not share it with everyone. This was the case during an exploration dive in the south of Sumba. Exposed, high swell, cold up-wellings, everyone was…
Flashers from down under! Australia’s Flasher Wrasses and the newest species from the Great Barrier Reef and Coral Sea
The eponymous flasher wrasses are so named for their dazzling courtship displays, in which males flash iridescent neon colours to attract females and to ward off rival males. This behaviour is best appreciated about an hour before sunset, or as…
Reef Microbiology Part One: The Holobiont
In this series, I hope to bring a magnifying glass to the invisible world populating our tanks – the microbiome! The first installment of this series will focus on the microbes living in and on our corals. What is Microbiology,…
Skylight Hyperspot R is an Aquascaping Light Adapted for Reef Tanks
Back in March last year we found a slick-looking aquascaping light called the Skylight Hyperspot and remarked that we would love to see a reef version. 18 months later, the reef spec Skylight Hyperspot R is now available so we…
Flashback Friday: Jake Adams’s Love For Anthias
We don’t know why but this morning, we woke up really feeling it for Anthias, so we entered it into the search bar on the Reef Builders’ website and were treated to some image-rich, species-rich articles written by Jake Adams…
