If you love exotic fish and don’t mind hundreds of them eyeballing you while you answer nature’s call, you’ll probably love using this unique aquarium toilet in Akashi, Japan.

Hipopo Papa (formerly Mumin Papa) Cafe, used to be known as one of the most popular dating spots on Hayashizaki Matsue Coast. It still is, but ever since the owner decided to do something special with the women’s toilet, it’s become famous primarily for being the only cafe in Japan – and probably the world – to feature an aquarium toilet. It’s technically surrounded on three sides by a giant aquarium filled with hundreds of exotic fish and a male turtle, which, considering this is a women’s only toilet, is a bit weird.

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Jake Harms converts old Apple iMac computers into beautiful aquariums. He spends hours locked up in his basement workshop, giving these old computers a new lease of life. So far, he’s sold over 1,000 aquariums to customers all over the world.

Jake said that he specifically uses 2000-era Apple iMac G3 computers, because of their distinct shape and bright color schemes. The opaque computer frames allow light to shine through them, so that the fish are visible from various angles. He uses iMacs because they’re a lot better looking than the beige and grey models of other brands.

“No one’s ever asked me to make an aquarium out of a Dell,” he jokingly says.

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People are definitely becoming more and more concerned about the environment, also more inventive. Looking for ways to save up energy, the staff of the Helsinki Sea Life Center aquarium in Finland, discovered they had a  totally free energy source living right in their fish tanks – electric eels.

“Our electrician built a device that uses four plastic-encased steel probes to capture the eel’s electrical discharge and feed it to the lights. At feeding time though, it really powers up. You can hear the voltage increasing and the lights shine bright and steady.” explains Markus Dernjatin – from the Helsinki Sea Life Center in Finland.

These deadly deep sea creatures can produce an amount of electrical energy sufficient to light up more than one Christmas tree – around 650 volts. At the same time, the high voltage is enough to kill a grown man…

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As a way of battling the summer heatwave that hit Japan this year, authorities have inaugurated a frozen aquarium that will keep visitors cool and entertained.

Kori no Suizokukan is located in Kesennuma, Miyagi Prefecture and features around 450 specimens of around 80 species of marine wildlife, all captured at a nearby sea port. Visitors can enjoy a brief break from the scorching sun and admire all sorts of fish, crabs or octopuses, as well as unusual objects like action figures, bottles of sake, or flowers, all embedded in huge blocks of ice.

The Frozen Aquarium was inaugurated, in Kesennuma’s fish market, in 2002, and uses flash-freezing technology to conserve fresh specimens and keep them looking so good.

While the Frozen Aquarium is a welcome tourist attraction, visitors can only spend a few minutes inside. Because temperatures inside the aquarium reach -20 degrees Celsius, a special suit is needed to keep people from becoming freezing exhibits themselves. Without these special suits, visitors would start feeling severe pains in just five minutes time.

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