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By admin - Posted Oct 26, 2009 09:10 PM

Commercially Raised Clown Triggerfish available now

Commercially Raised Clown Triggerfish available now

Baby Clown Trigger!

Biota Marine Life Nursery (Palau) has successfully hatched and reared clown triggers (Balistoides conspicillum), and the first batch of captive raised specimens is now available through livestock wholesaler Quality Marine.

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Research finds reef fish can adjust for gender as oceans warm

UTS research has shown Spiny Chromis coral reef fish have the ability to compensate for the gender bias caused by rising ocean temperatures. While this is an important trait that could help constrain the impacts of ocean warming on reef fish populations and other species, there is a limit to this "transgenerational plasticity"

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Close-up of coral fluorescence in a reef lab

Dr. Tim Wijgerde shares with Advanced Aquarist this video of stony corals fluorescencing under blue light, including some time-lapse footage of neon SPS polyps contracting and expanding.

This video shows various scleractinian corals under narrow-bandwidth blue light, which excites the fluorescent proteins in the epidermis of the animals. Fluorescence is a phenomenon where an object absorbs light of a particular wavelength (colour), and emits it at another wavelength (colour). It is still not clear why corals produce fluorescent proteins, but it seems to protect them from harmful UV-radiation and excess (sun)light.

Using time-lapse, the contractile and expansion behaviour of coral polyps is also visualized in this video.

Advanced Aquarist Wallpaper: Harlequin Shake

Harlequin Shrimps (Hymenocera elegans) are some of the coolest, weirdest, most beautiful shrimps in the world. Here's a pair of loitering Harlequins photographed by Mitchell Brown.

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An elegant reef worm

Few if any of us appreciate the beauty of sea worms beyond the usual fan/feather duster varieties. The reality is many of us are freaked out by worms. We shouldn't be because some species are actually really darn neat and beautiful.

This is one of many species of syllid worm, a type of worm that crawls (yes, with little "feet") its way around sponges, ascidians, hydroids, bryozoa and algae, which they feed upon by piercing their sedentary prey's skins and sucking out the "life juice."

Granted, not all worms are beauty pageant contestents.  But you have to admit the stripped monochromatic pigmentation of this particular syllid is rather striking and its movement rather graceful.  Reef life is remarkable!

Video by liquidguru

That's some fancy woodworking on this 300 gallon aquarium!

That's some fancy woodworking on this 300 gallon aquarium!

I'm so fancy!

Currently up for bid on eBay is this 300 gallon glass aquarium with highly ornate custom pedestal cabinetry and full tank trim featuring fluted Corinthian columns.

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"Invasive" corals never looked so lovely

"Invasive" corals never looked so lovely

Simple and simply beautiful

Some reefkeepers don't keep corals like Xenia, GSP, and Montis because they grow too quickly and overtake entire reef tanks, while others simply don't view them as a challenge anymore. But these "weed corals" can be used to create beautiful and relatively carefree reef aquariums.

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Pseudojuloides polackorum: a new pencil wrasse

Pseudojuloides polackorum: a new pencil wrasse

Photo by Dennis Polack, the diver who first brought the undiscovered species to the scientists' attention and hence the fish was named after him and his wife, Sandy.

Allan Connell, Benjamin Victor, and John Randall have just described a new reef wrasse from the east coast of South Africa. The new pencil wrasse is a beauty and has already been available to hobbyist (albeit expensive and rare) thanks to the increasing collection of African reef fish (particularly Madagascar/Mauritius) in recent years.

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How Fish Eat

Another Friday is here. In case you haven't learned anything this week, here is an outstanding two-part episode by Smarter Every Day explaining the incredible mechanics behind how fish gobble things up, complete with some neato slow-mo video.

Digital Art Series by Mitchell Brown (including two new wallpapers)

Canadian Photographer Mitchell Brown continues to graciously supply Advanced Aquarist with top-notch aquatic wallpapers. His latest wallpapers are part of his Digital Art Series.

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New species of pleco named after smallpox

New species of pleco named after smallpox

Parotocinclus variola

A new loricariid (suckermouth armored catfish) has been formally described. Parotocinclus variola was named after smallpox (yes, the infectious disease) because of all the small dark dots that blanket the fish from head to tail.

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A new gall crab described. Wait; a what?

A new gall crab described.  Wait; a what?

There lives a tiny crab (or two) inside the tiny hole (circled) in the middle of this brain coral.

A new species of gall crab has been described from the Red Sea and Gulf of Oman. If you don't know what a gall crab is, it's ok. Most reefkeepers don't, even though many of us have inadvertently kept them.

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Details about the world's biggest nature aquarium

Amano's colossal 40 meter long, 42,000+ gallon nature aquarium at Lisboa's Oceanarium, Portugal, opens this April. In partnership with the Portuguese aquascaping community AquaA3, we share some impressive photos, videos, and details about the world's biggest nature aquarium.

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The chameleon dottyback

Many of you have seen or kept Pseudochromis fuscus. But how many of you knew that this fish is able to change colors to camouflage against the background or to mimic the colors of its prey in order to lower their guard? There's a biological reason why we see so much color variation for this dottyback.

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A Beautiful Mess

Aquarists often put a lot of effort into sculpting carefully orchestrated aquascapes with immaculate layers, textures, and arrangements. But sometimes letting nature take over can produce gorgeous (and it goes without saying, very natural) results.

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