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Let's talk about sponge filters

Let's talk about sponge filters

by Leonard Ho last modified Dec 05, 2016 12:54 AM

No; not that kind of sponge filter. I want to talk about living sponges. These sedentary animals may look passive, but they are anything but. Their active water pumping mechanism is really impressive.

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A new species of tiny goby that lives in tunicates

A new species of tiny goby that lives in tunicates

by Leonard Ho last modified Dec 01, 2016 10:10 PM

Lubricogobius tunicatus is a new Indo-Pacific dwarf goby (mature size of about 0.4"/1cm) that lives inside the oral or incurrent siphons of tunicates – just another fascinating symbiosis found on reefs.

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Mediterranean sun corals have an interesting method of reproduction

Mediterranean sun corals have an interesting method of reproduction

by Leonard Ho last modified Nov 30, 2016 02:57 PM

About three quarters of coral species broadcast spawn (eggs and sperm) into the water for external fertilization. Fewer corals fertilize internally, brooding "baby corals" (scientists call these planulae) before "giving birth." Mediterranean sun corals are one such coral, and their way of giving birth is even more rare and weird.

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Why fish send red signals in the deep blue sea

Why fish send red signals in the deep blue sea

by Leonard Ho last modified Nov 28, 2016 11:25 PM

Some of us think that reef fish can't see the color red because red light is quickly filtered out by seawater. But then why are so many reef fish fluorescence red? Studies are showing that reef fish not only see red, but the color serves very different purposes for different fish.

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Polyp fetish?  We've got the video for you

Polyp fetish? We've got the video for you

by Leonard Ho last modified Nov 28, 2016 12:02 AM

Dr. Tim Wijgerde has been perfecting his time-lapse photography. His latest 4K video reveals the slow motion of lovely Acropora polyps. Old timers will remember the days when Acropora were considered impossible to keep in captivity. Oh, how times have changed.

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Two new reef goby species

Two new reef goby species

by Leonard Ho last modified Nov 22, 2016 11:28 PM

Amblygobius calvatus and Amblygobius cheraphilus are the two newest species of burrowing gobies from the tropical western Pacific Ocean. They exist in shallow water but are skittish and have evaded discovery until now.

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Magnificent "room divider" reef tank

Magnificent "room divider" reef tank

by Leonard Ho last modified Nov 21, 2016 11:16 PM

I can't think of a more wonderful way to divide two rooms; both the kitchen and the dining table share view of this incredible reef aquarium.

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The world's most expensive betta fish?

The world's most expensive betta fish?

by Leonard Ho last modified Nov 20, 2016 07:05 PM

The winning bid on a Facebook auction for a betta fish pigmented like Thailand's national flag ended at a whooping 53,500 baht (~$1,500 USD)! As far as we are aware, this makes it the most expensive betta fish in the world.

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Angler frogfish have neon-glow worm lures

Angler frogfish have neon-glow worm lures

by Leonard Ho last modified Nov 17, 2016 12:51 AM

You likely know about the wiggly lures some frogfish use to entice prey to come within striking distance so the frogfish can easily ambush them. It turns out the lures of Antennarius striatus glow under actinic lighting, further enhancing their deadly seduction.

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One new dwarf goby described, another redescribed

One new dwarf goby described, another redescribed

by Leonard Ho last modified Nov 17, 2016 01:05 AM

David Greenfield and Toshiyuki Suzuki describes a new species of dwarf goby, Eviota bilunula. They also redescribe Eviota flebilis based on new specimens found of this elusive species.

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Mass spawning of 2800 transplanted Acropora

Mass spawning of 2800 transplanted Acropora

by Leonard Ho last modified Nov 15, 2016 11:47 PM

W00T! Researchers report a large-scale synchronous spawning of ~2800 colonies of outplanted Acropora tenuis in Okinawa, Japan. This is a different method of reef restoration than what many of us are familiar with - one which promotes genetic diversity through natural reproduction.

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Another mesmerizing 4K time lapse video

Another mesmerizing 4K time lapse video

by Leonard Ho last modified Nov 14, 2016 11:15 PM

Dr. Tim Wijgerde is getting *really* good at his time lapse photography. Part 3 of his series feature the mesmerizing slow dance of corallimorpharians, elegance corals, blastomussas, starfish, tubeworms, SPS, zoanthids, and more.

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Another pleco described as a new species: Panaqolus tankei

Another pleco described as a new species: Panaqolus tankei

by Leonard Ho last modified Nov 13, 2016 06:10 PM

L398 is now officially recognized as Panaqolus tankei. We are witnessing a golden era in fish taxonomy thanks to technology, modern research techniques, and the cooperation between aquarists and the scientific community.

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Would you "keep" a realistic robotic fish?

Would you "keep" a realistic robotic fish?

by Leonard Ho last modified Nov 11, 2016 12:42 PM

South Korean tech company AIRO is manufacturing one of the most realistic robotic fish currently on the market. The MIRO is an advanced submersible robot that mirrors both the look and movement of fish.

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New ways to measure fish personality

New ways to measure fish personality

by Leonard Ho last modified Nov 09, 2016 11:38 PM

Multiple studies have concluded what fishkeepers have known for ages: fish have very distinct personalities. Some are skittish while others are bold. Some are friendly while some are simply born SOBs. A new study further reinforces this conclusion while also outlining simple, low-cost methods for breeders to measure fish personality.

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Corals and zooxanthallae: A 210 million year old relationship

Corals and zooxanthallae: A 210 million year old relationship

by Leonard Ho last modified Nov 08, 2016 11:21 PM

A new study has found strong evidence that the iconic partnership between corals and zooxanthallae is really old ... like when-the-first-dinosaurs-walked-Pangea old.

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Where your corals are collected matters

Where your corals are collected matters

by Leonard Ho last modified Nov 07, 2016 10:27 PM

A University of Texas study found that Porites astreoides from more dynamic inshore reefs are much better able to adapt to stresses and changes at the genetic level compared to Porites from more stable offshore reefs.

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The puffiest pufferfish

The puffiest pufferfish

by Leonard Ho last modified Nov 07, 2016 12:20 AM

Most of the puffed-up pufferfish photos and videos we've seen are of the spiky porcupine variety. Here's footage of a dogface pufferfish at its most extreme.

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A much-needed balanced perspective about the marine aquarium trade

A much-needed balanced perspective about the marine aquarium trade

by Leonard Ho last modified Nov 04, 2016 11:50 AM

Recently, a lot of negative press has been written about the aquarium trade. Shannon Switzer Swanson has embarked on a global "adventure" to present a balanced view of the aquarium trade - both its impact on coral reef conservation and its people.

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That odor Acros give off when out of water

That odor Acros give off when out of water

by Leonard Ho last modified Nov 03, 2016 04:17 PM

If you're a SPS keeper, you know the smell. Most people find the smell unpleasant though reefkeepers may have learned to tolerate or even enjoy the odor (we are lovely weirdos!). So what is that odor?

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