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Inter-species hunting: groupers and moray eels team up for the chase [videos]

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Fish are continually showing researchers their intelligence. We’ve reported on wrasses using tools on multiple occasions. After the jump, read more about how the grouper and moray eel have teamed up to hunt down prey.

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Rabaulichthys suzukii: A Majestic Sailfin Anthias

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Rabaulichthys sp. anthias are rarely seen in the aquarium trade, and it's a shame. They are some of the world's most beautiful fish. Coraltheory.com recently acquired a small batch of these sexy sailfin anthias and shared some amazing photos with us.

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"Reefs to Rainforests: The Great Expedition" [video]

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ABC7 KGO-TV (San Francisco) aired an hour-long television special about the California Academy of Science's recent expedition to the Philippines. Join the CAS team of scientists (including Advanced Aquarist's own Richard Ross and Matt Wandell) as they explore the diverse ecosystems of the Philippines.

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ARTICLE

Aquarium Chemistry: Calcite, Aragonite, Limestone, and More

By James W. Fatherree on Oct 26, 2011 at 08:00 AM

It's been said a million times that aragonite helps buffer aquarium water, or helps maintain calcium concentrations, while other (carbonate) substrates do not. However, to the best of my knowledge this simply isn't true.

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Is your sushi radioactive? This serving plate can tell.

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We admit this is a bit outside of the realm of aquariums, but it is too cool not to share. The Fukushima Plate - named after the recent Fukushima Daiichi nuclear disaster - is tableware with a built-in radioactivity meter.

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The "cluster array" LED lights of Reef-A-Palooza

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Both Ecotech Marine's Radion and Aqua Illumination (Sol, Nano, and their upcoming model) were on display at RAP 2011. Much has already been written about these LED lights featuring clustered LED arrays, so here are some new photos and brief comments about them.

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CAD Lights' affordable Conic Skimmers

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CAD lights showcased their new lineup of Conic Skimmers at RAP 2011: three affordable, true cone, needlewheel, extremely quiet, cast-acrylic skimmers starting at $225. And they're all made in the USA. Chinese manufacturers, eat your heart out.

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Extreme pumpkin carving for the extreme reef aquarist

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How extreme is your reefkeeping hobby? Take a look at some of these ocean-inspired pumpkin creations to get your creative juices flowing this Halloween!

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CPR production model nano fluidized media reactor spied at Reef-A-Palooza

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The production model of CPR upcoming nano fluidized media reactor made its first appearance at RAP 2011. This extremely diminutive reactor works with a wide range of media (biopellets, GFO, and GAC) and can be mounted in tanks or sumps of any normal depth.

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Tunze USA debuts 6155 Stream Pumps

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The new Tunze Turbelle Stream 6155 propeller pump made its public debut at Reef-A-Palooza 2011. The new pump features several key changes to improve noise and output performance. With the 6155, Tunze is also significantly changing the line-up of controllable Streams.

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Seio Surge Pump is an affordable circulation device

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Seio's new Surge Pumps, introduced at Reef-a-Palooza 2011, feature low power consumption (<22 watts), low noise, high flow rates (up to 6,400gph), and an integrated 4 stage wavemaker. The pump will soon be available in two models, with the larger model expected to sell for less than $100 USD.

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Reports from Reef-A-Palooza 2011

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The 8th annual Reef-A-Palooza (RAP) is billed as the US' largest marine aquarium event, and day one certainly lived up to its billing. Aquarists flocked to the Orange County Fair Grounds (CA) to participate in this two-day event featuring over 70 exhibitors, 12 speakers, and a seemingly endless parade of raffle prizes. Warning: picture-intensive!

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7.3 Earthquake vs. 60 gallon aquarium [video]

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Find out what happens to a full 60 gallon glass aquarium during a simulated major earthquake and why tank owners in earthquake zones should secure their aquariums to their walls.

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Parrotfish feeding on coral polyps help spread needed zooxanthellae

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Similar to bees distributing pollen, parrotfish spread zooxanthellae across stretches of coral reef. These zooxanthellae "reservoirs" are necessary for coral settlement and highlight yet another way that overfishing can harm coral reefs.

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Reef fish are ... pack hunters?

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If I was to describe a group of animals which work together to hunt prey - where one individual assumes a hunter/chaser role while others in group herd their prey - what animal comes to mind? Lions? Wolves? Dolphins? A new study discovered tropical goatfish also hunts in coordinated groups.

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