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A new genus and species of tetra: Phycocharax rasbora

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A recent survey of rio Bra├žo Norte (Brazil) discovered a new, colorful tetra that couldn't be assigned to any known genus, so a new one was created. Meet the new genus Phycoharax, new species P. rasbora.

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Bogdan Borta's "Tangled Roots" Aquascape

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It's amazing what you can achieve with a jumbled pile of wood adorned with a wide variety of plants. Bogdan explains the design and philosophy behind his magnificent "Tangled Roots" aquascape.

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Male guppies have mostly one thing on their mind, and it costs them dearly

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Yup. Sex. A new study finds that boy guppies spend almost half their waking lives chasing after girl guppies, and it comes at a great cost. Males kept in company of females suffer three times higher mortality rates compared to males kept only with other males.

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Acanthurus albimento, a new tang species

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While scientists have described a lot of new reef fish recently, they're mostly small or cryptic species. Discovering a new, big tang species is exciting news indeed! Acanthurus albimento is a new tang from the Philippines and is part of the tang clade that includes the Dussumieri tangs.

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The world's smallest fishes

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Don't cheat by googling. Do you know what the world's smallest freshwater and saltwater fishes are? And just how tiny are they? If it helps: All the contenders are tropical.

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ARTICLE

How to Grow Corals Quicker, Part II: Combined Effects of Water Velocity and Alkalinity Concentrations

By Dana Riddle on Feb 15, 2017 at 10:00 AM

If we want to grow corals more quickly, it helps to understand the interplay of the many variables that affect corals. Dana explores the relationship between alkalinity, water flow, photosynthesis, and nutrients.

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JBL Aquascape by Vladimir Chirilov

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Here's five minutes of splendid relaxation courtesy of Mr. Chirilov. I'm only going to mess up this beautiful aquascape with my bumbling words, so I'll just be quiet now.

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You know how dogs mark their territories with pee? Cichlids do it, too.

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Well, something similar at least. A new study has found that the Daffodil Cichlid uses its pee to communicate aggression and sort out dominance.

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Scientists reveal secrets of flashlight fish

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Flashlight fish are very cool reef fish, but they're cave-dwellers so humans rarely get a glimpse into their cryptic world. They possess bioluminescent sacks under their eyes. Researchers now know how flashlight fish use their flashlights.

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A truly affordable jellyfish aquarium

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Jellyfish aquariums have proven to be extremely popular, but a proper Kreisel jelly tank usually comes with an intimidating price tag. A new aquarium system aims to bring jellyfish tanks to the masses.

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Two new Sueviota dwarf gobies

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Researchers have described two new Sueviota species: Sueviota tubicola (AKA the "tube worm goby") from Papua New Guinea and Sueviota pyrios (AKA the "sun chariot goby") from the Red Sea.

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RIP Granddad the Lungfish

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We regret to report that Granddad, the famous Aussie lungfish at Chicago's Shedd Aquarium, has passed away. He was euthanized after he stopped eating and showed signs of organ failure from old age. Granddad had been at Shedd since 1933! RIP Granddad.

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This is the inspiration for my next aquascape

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I'm determined to start a new freshwater aquarium in 2017, and I've decided it will be a discus hardscape. Over the past few months, I've scoured the internet for inspiration. This is it. Hopefully it'll inspire a few of you to start a new hardscape this year with me.

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Want your fish to form stronger relationships? Scare them.

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Scientists have concluded guppies form stronger and more stable social bonds when they're under common threat. But they also form smaller, less inclusive groups under this stress. Sound familiar, doesn't it?

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Proof that frogfish are the ultimate eating machines

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If you don't like watching fish eating other fish (and especially if you love pufferfish), then don't watch this video ... because it's of a frogfish eating a HUGE pufferfish, whose puffing defense proved no match for "The Mouth."

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