Coral

The Past, Present, and Future of Torch Corals, Euphyllia glabrescens

Known for their dazzling colors, swaying tentacles, and propensity to sting nearby corals, the Torch Coral, Euphyllia glabrescens, has been a staple of the reef aquarium hobby for decades. And given the continuous discovery of new varieties, this species will…

More Non-Native Corals found off Hawaiian Island

Several non-native aquarium coral species have been found repeatedly on one Hawaiian island. The corals were first found off Anini Beach on the north shore of Kauai Island by Reef Guardians Robin Mazor and Tom Woods in 2021, but they’ve…

Double-headed Master Scoly is Twice The Delight

We have been lucky to have experienced wild twin Scolys in our wholesale days and read with interest when Ultra Coral Australia released information back in 2022 on how they propagated them by cutting the base off. Well, it turns…

Green Cabbage Coral is One Of The Best Corals for Beginners

If you’re completely new to reef aquariums or have had a bad run of coral deaths, our featured coral, the Cabbage Coral, is a great coral to add to your tank. As the common name suggests this soft coral looks…

Continuing A Reef Show Tradition With Chris Meckley

Chris Meckley, the owner of ACI Aquaculture, and I have different levels of experience in the reefkeeping hobby. Therefore, it’s fair to say that his preferences for corals may differ from mine. However, I always enjoy the opportunity to compare…

Flashback Friday: When Jake wrote about the Croc Scolies of the Arafura Sea

At twenty years old, with 50,000 images and nearly 15,000 posts strong, we love going back through the Reef Builders archives to remind ourselves just how good some of the corals were, along with the stories behind them. This morning…

FAQs on the Weeping Willow Leather Coral

We ask Sarcophyton fanatic Remy about the Weeping Willow Toadstool, how to ID it, and who if anyone has it now. What is the Weeping Willow? The “Weeping Willow” is a species of Sarcophyton. Commonly called “toadstools,” these leathers are…

Why Coral Collectors Trim Corals and Why You Should Trim Them Too. 

Have you wondered why some corals look the way they do when you buy them at your aquarium store? Some with a flat base cut, some with grinding marks on them, and other man-made alterations. You might have seen this…

Snake Polyps are the Oddballs of the Coral World

A fascinating soft coral rarely seen nowadays is the “snake polyp.” several species belong to this family, including Isaurus tuberculatus, I. cliftoni, and  I. maculatus. These species are closely related to zoanthids. They have a long stalk with a central…

World’s Largest Deep-sea Coral Reef Discovered off the Southeast United States

A deep-sea coral reef covering 6.4 million acres has been discovered off the southeast United States. Researchers working for NOAA and its partners mapped an underwater seascape of coldwater coral mounds the size of Vermont, deeming it the largest deep-sea…