CORAL New Issue “REEF MICROBIOMES" Inside Look

Cover of CORAL Magazine Volume 18, Issue 4 – REEF MICROBIOMES – July/August 2021. On the cover: *Chelmon rostratus* (Copperband Butterflyfish, pair): Dr. Vladimir Golubev. Background: *Ricordea yuma* Mushroom Coral: Tyler Fox.

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HEREWITH, a sampling of articles and opening pages for readers curious about what the issue brings.

Table of Contents for the July/August 2021 issue of CORAL Magazine. You can view this TOC online.

“Light is being shed on the black hole of microbial ecology in closed aquatic systems, and the final chapter has yet to be written.” - Dr. Tim Hovanec — “Light is being shed on the black hole of microbial ecology in closed aquatic systems, and the final chapter has yet to be written.” – Dr. Tim Hovanec

REEF NEWS presents findings and happenings of note in the marine world. In this issue: The secret life of corallivores and their zooxanthellae-packed feces; “Double Whammy” brewing for stony corals in wild; RIP Premnas: 1816–2021.

REEF VISIONS: A portfolio of extraordinary reef life spotted in the current aquarium trade. In this issue, photographer May Fox captures the Jason Fox Groovy Goniastrea for the opening spread.

Author Kenneth Wingerter explains the role of diazotrophs (nitrogen-fixing bacteria) play in the secret life of corals, and how these revelations may force us to rethink the microbiome of our reef aquariums.

Will microbiome testing further the science of reef aquarium and coral husbandry? Through environmental DNA sequencing, Dr. Eli Meyer reveals the hidden biodiversity of the microbiome in reef aquariums with some surprising results!

Corals are part animal, part plant, part rock ... and now part bacteria? Dr. Justin Maire explains the growing understanding of the role that bacteria play in the coral holobiont, which could lead to practical applications of probiotics on the reef, and in our aquariums. — Corals are part animal, part plant, part rock … and now part bacteria? Dr. Justin Maire explains the growing understanding of the role that bacteria play in the coral holobiont, which could lead to practical applications of probiotics on the reef, and in our aquariums.

Come eye-to-eye with Cute as Ned & Anna DeLoach begin a photographic obsession with the coral gobies. — Come “Eye-to-Eye with Cute” as Ned & Anna DeLoach explore a photographic obsession with the coral gobies.

"'Find your joy in the journey,' as the saying goes, 'not in reaching a goal.' As a marine aquarist for half of my life, I have come to believe the truth in this, but I also know that the path taken on a years-long journey can sometimes be rocky and arduous." - Georg Schneider, introducing his Aquarium Portrait. — “‘Find your joy in the journey,’ as the saying goes, ‘not in reaching a goal.’ As a marine aquarist for half of my life, I have come to believe the truth in this, but I also know that the path taken on a years-long journey can sometimes be rocky and arduous.” – Georg Schneider, introducing his Aquarium Portrait.

A living conundrum, this is an iconic fish of Indo-Pacific coral reefs. Bright-eyed, intelligent, active, and alert, the Copperband Butterflyfish is a beguiling favorite among reef aquarists. It is also a species with a mixed or even dismal record of survival in the aquarium. We put Chelmon rostratus in this issue's Species Spotlight. — A living conundrum, this is an iconic fish of Indo-Pacific coral reefs. Bright-eyed, intelligent, active, and alert, the Copperband Butterflyfish is a beguiling favorite among reef aquarists. It is also a species with a mixed or even dismal record of survival in the aquarium. We put *Chelmon rostratus* in this issue’s Species Spotlight.

Dr. Dieter Brockmann lays the foundation for smart fish-purchasing decisions in Reefkeeping 101: Good Fish, Bad Fish.

Unpredictable and alluring, CORAL readers shared their collective wisdom keeping the often challenging Copperband Butterflyfish, Chelmon rostratus. Matt Pedersen tallies the results in this issue's Advanced Aquatics. — Unpredictable and alluring, CORAL readers shared their collective wisdom keeping the often challenging Copperband Butterflyfish, *Chelmon rostratus*. Matt Pedersen tallies the results in this issue’s Advanced Aquatics.

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Daniel Knop reflects on the Bongo Tiger Shrimp, Phyllognathia ceratophthalma, a tiny beauty related to Harlequin Shrimp an a pricey rarity in the trade but a potential candidate for the determined aquaculturist. — Daniel Knop reflects on the Bongo Tiger Shrimp, *Phyllognathia ceratophthalma*, a tiny beauty related to Harlequin Shrimp. It is a pricey rarity in the trade but a potential candidate for the determined aquaculturist.

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