A visitor looks at installations with goldfishes in illuminated water tanks at the Art Aquarium Museum 2020 exhibition, produced by the Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan August 28, 2020. REUTERS/Issei Kato

A visitor looks at installations with goldfishes in illuminated water tanks at the Art Aquarium Museum 2020 exhibition, produced by the Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan August 28, 2020. REUTERS/Issei Kato

A visitor looks at installations with goldfishes in illuminated water tanks at the Art Aquarium Museum 2020 exhibition, produced by the Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan August 28, 2020. REUTERS/Issei Kato

A visitor looks at installations with goldfishes in illuminated water tanks at the Art Aquarium Museum 2020 exhibition, produced by the Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan August 28, 2020. REUTERS/Issei Kato

A visitor looks at installations with goldfishes in illuminated water tanks at the Art Aquarium Museum 2020 exhibition, produced by the Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan August 28, 2020. REUTERS/Issei Kato

A visitor looks at installations with goldfishes in illuminated water tanks at the Art Aquarium Museum 2020 exhibition, produced by the Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan August 28, 2020. REUTERS/Issei Kato

Goldfishes are seen inside a water tank equipped with lenses on the surface in an artwork titled "Reflecterium" at the Art Aquarium Museum 2020 exhibition, produced by the Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan August 28, 2020. REUTERS/Issei Kato

A visitor looks at installations with goldfishes in illuminated water tanks at the Art Aquarium Museum 2020 exhibition, produced by the Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan August 28, 2020. REUTERS/Issei Kato

Goldfishes are seen inside a water tank equipped with lenses on the surface in an artwork titled "Reflecterium" at the Art Aquarium Museum 2020 exhibition, produced by the Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan August 28, 2020. REUTERS/Issei Kato

A visitor wearing a traditional summer kimono clothes looks at an installations with goldfishes in illuminated water tanks at the Art Aquarium Museum 2020 exhibition, produced by the Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan August 28, 2020. REUTERS/Issei Kato

Goldfishes are seen inside a water tank in an artwork titled "Tokogake Goldfish Ornament" at the Art Aquarium Museum 2020 exhibition, produced by the Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan August 28, 2020. REUTERS/Issei Kato

Goldfishes are seen inside a water tank equipped with lenses on the surface in an artwork titled "Reflecterium" at the Art Aquarium Museum 2020 exhibition, produced by the Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan August 28, 2020. REUTERS/Issei Kato TPX IMAGES OF THE DAY

A visitor looks at installations with goldfishes in illuminated water tanks at the Art Aquarium Museum 2020 exhibition, produced by the Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan August 28, 2020. REUTERS/Issei Kato

A goldfish bowl-like acrylic screen is seen installed as part of new social distancing measures and prevention of infection against the coronavirus disease (COVID-19), where male customers sit inside the screens to be entertained by female staff, is installed at Jazz Lounge Encounter, a form of a night club for seeking encounters, at Ginza district in Tokyo, Japan August 6, 2020. Picture taken August 6, 2020. REUTERS/Issei Kato

Goldfish bowl-like acrylic screens are seen installed as part of new social distancing measures and prevention of infection against the coronavirus disease (COVID-19), where male customers sit inside the screens to be entertained by female staff, are installed at Jazz Lounge Encounter, a form of a night club for seeking encounters, at Ginza district in Tokyo, Japan August 6, 2020. Picture taken August 6, 2020. REUTERS/Issei Kato

A goldfish bowl-like acrylic screen used as part of new social distancing measures and prevention of infection against the coronavirus disease (COVID-19), where male customers sit inside the screens to be entertained by female staff, is installed at Jazz Lounge Encounter, a form of a night club for seeking encounters, at Ginza district in Tokyo, Japan August 6, 2020. REUTERS/Issei Kato

Goldfish bowl-like acrylic screens used as part of new social distancing measures and prevention of infection against the coronavirus disease (COVID-19), where male customers sit inside the screens to be entertained by female staff, are installed at Jazz Lounge Encounter, a form of a night club for seeking encounters, at Ginza district in Tokyo, Japan August 6, 2020. REUTERS/Issei Kato

Goldfish bowl-like acrylic screens used as part of new social distancing measures and prevention of infection against the coronavirus disease (COVID-19), where male customers sit inside the screens to be entertained by female staff, are installed at Jazz Lounge Encounter, a form of a night club for seeking encounters, at Ginza district in Tokyo, Japan August 6, 2020. REUTERS/Issei Kato TPX IMAGES OF THE DAY

A female staff wearing acrylic face shied is seen next to goldfish bowl-like acrylic screens used as part of new social distancing measures and prevention of infection against the coronavirus disease (COVID-19), where male customers sit inside the screens to be entertained by female staff, at Jazz Lounge Encounter, a form of a night club for seeking encounters, at Ginza district in Tokyo, Japan August 6, 2020. REUTERS/Issei Kato

A female staff wearing acrylic face shied is seen next to a goldfish bowl-like acrylic screen used as part of new social distancing measures and prevention of infection against the coronavirus disease (COVID-19), where male customers sit inside the screens to be entertained by female staff, at Jazz Lounge Encounter, a form of a night club for seeking encounters, at Ginza district in Tokyo, Japan August 6, 2020. REUTERS/Issei Kato

Goldfish bowl-like acrylic screens used as part of new social distancing measures and prevention of infection against the coronavirus disease (COVID-19), where male customers sit inside the screens to be entertained by female staff, are installed at Jazz Lounge Encounter, a form of a night club for seeking encounters, at Ginza district in Tokyo, Japan August 6, 2020. REUTERS/Issei Kato

Goldfish bowl-like acrylic screens used as part of new social distancing measures and prevention of infection against the coronavirus disease (COVID-19), where male customers sit inside the screens to be entertained by female staff, are installed at Jazz Lounge Encounter, a form of a night club for seeking encounters, at Ginza district in Tokyo, Japan August 6, 2020. REUTERS/Issei Kato

Goldfish bowl-like acrylic screens used as part of new social distancing measures and prevention of infection against the coronavirus disease (COVID-19), where male customers sit inside the screens to be entertained by female staff, are installed at Jazz Lounge Encounter, a form of a night club for seeking encounters, at Ginza district in Tokyo, Japan August 6, 2020. REUTERS/Issei Kato

Goldfish bowl-like acrylic screens used as part of new social distancing measures and prevention of infection against the coronavirus disease (COVID-19), where male customers sit inside the screens to be entertained by female staff, are installed at Jazz Lounge Encounter, a form of a night club for seeking encounters, at Ginza district in Tokyo, Japan August 6, 2020. REUTERS/Issei Kato

A group of Common Goldfishes is seen at Aqua Fish Aquarium in Yangon, Myanmar, November 1, 2018. REUTERS/Ann Wang

A man looks at goldfish in plastic bags at a shop in Hong Kong's Mongkok district, China October 30, 2018. REUTERS/Bobby Yip

Goldfish swim in tanks at a shop in Hong Kong's Mongkok district, China October 30, 2018. REUTERS/Bobby Yip

Goldfish are sold in plastic bags at a shop in Hong Kong's Mongkok district, China October 30, 2018. REUTERS/Bobby Yip

Goldfish swim in a plastic bag at a shop in Hong Kong's Mongkok district, China October 30, 2018. REUTERS/Bobby Yip

Goldfish swim in tanks at a shop in Hong Kong's Mongkok district, China October 30, 2018. REUTERS/Bobby Yip

Goldfish are sold for HK$10 ($1.28) per pack at a shop in Hong Kong's Mongkok district, China October 30, 2018. REUTERS/Bobby Yip

Ornamental fish are seen for sale in plastic bags on the street in Hanoi, Vietnam October 30, 2018. REUTERS/Kham

Ornamental fish are seen for sale in plastic bags on the street in Hanoi, Vietnam October 30, 2018. REUTERS/Kham

Emie Le Fouest from Paris brings her goldfish named "Luiz Pablo" to Paris aquarium as part of an operation launched to take care of hundreds of goldfish abandoned by French holiday-makers, in Paris, France, August 20, 2018. Picture taken, August 20, 2018. REUTERS/Pascal Rossignol

Goldfish are seen in a quarantaine basin as Paris aquarium launched an operation to take care of hundreds of goldfish abandoned by French holiday-makers, in Paris, August 20, 2018. Picture taken, August 20, 2018. REUTERS/Pascal Rossignol

A young boy watches a goldfish aquarium as Paris aquarium launched an operation to take care of hundreds of goldfish abandoned by French holiday-makers, in Paris, August 20, 2018. Picture taken, August 20, 2018. REUTERS/Pascal Rossignol

Emie Le Fouest from Paris brings her goldfish named "Luiz Pablo" to Paris aquarium as part of an operation launched to take care of hundreds of goldfish abandoned by French holiday-makers, in Paris, France, August 20, 2018. Picture taken, August 20, 2018. REUTERS/Pascal Rossignol?

Emie Le Fouest from Paris brings her goldfish named "Luiz Pablo" to Paris aquarium as part of an operation launched to take care of hundreds of goldfish abandoned by French holiday-makers, in Paris, France, August 20, 2018. Picture taken, August 20, 2018. REUTERS/Pascal Rossignol

Women wearing traditional costumes look at installations with goldfish in illuminated tanks at Art Aquarium 2018, produced by Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan, July 5, 2018. REUTERS/Kim Kyung-Hoon TPX IMAGES OF THE DAY

Women wearing traditional costumes look at installations with goldfish in illuminated tanks at Art Aquarium 2018, produced by Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan, July 5, 2018. REUTERS/Kim Kyung-Hoon

Women wearing traditional costumes look at installations with goldfish in illuminated tanks at Art Aquarium 2018, produced by Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan, July 5, 2018. REUTERS/Kim Kyung-Hoon

Women wearing traditional costumes look at installations with goldfish in illuminated tanks at Art Aquarium 2018, produced by Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan, July 5, 2018. REUTERS/Kim Kyung-Hoon

A woman looks at installations with goldfish in illuminated tanks at Art Aquarium 2018, produced by Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan, July 5, 2018. REUTERS/Kim Kyung-Hoon

A man looks at an installation with goldfish in an illuminated tank at Art Aquarium 2018, produced by Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan, July 5, 2018. REUTERS/Kim Kyung-Hoon

A goldfish is pictured at Art Aquarium 2018, produced by Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan, July 5, 2018. REUTERS/Kim Kyung-Hoon

A woman looks at installations with goldfish in illuminated tanks at Art Aquarium 2018, produced by Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan, July 5, 2018. REUTERS/Kim Kyung-Hoon

A woman wearing a traditional costume looks at installations with goldfish in illuminated tanks at Art Aquarium 2018, produced by Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan, July 5, 2018. REUTERS/Kim Kyung-Hoon

Women wearing traditional costumes look at installations with goldfish in illuminated tanks at Art Aquarium 2018, produced by Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan, July 5, 2018. REUTERS/Kim Kyung-Hoon

Women wearing traditional costumes look at installations with goldfish in illuminated tanks at Art Aquarium 2018, produced by Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan, July 5, 2018. REUTERS/Kim Kyung-Hoon

A goldfish is pictured at Art Aquarium 2018, produced by Japanese Art Aquarium artist Hidetomo Kimura, in Tokyo, Japan, July 5, 2018. REUTERS/Kim Kyung-Hoon

A woman looks at installations with goldfish in illuminated tanks at Art Aquarium 2018, produced by Japanese Art Aquarium artist Hidetomo Kimura in Tokyo, Japan, July 5, 2018. REUTERS/Kim Kyung-Hoon

Installations using goldfish in illuminated tanks are displayed at the Art Aquarium exhibition in Tokyo, Japan July 6, 2017. About 5,000 goldfish and 3,000 tropical fish are displayed in 130 uniquely shaped tanks. This unique art form uses fish along with LED lights, projection mapping and music in a show produced by Japanese Art Aquarium artist Hidetomo Kimura. REUTERS/Kim Kyung-Hoon

A staff member works to prepare the Art Aquarium exhibition in Tokyo, Japan July 5, 2017. Picture taken July 5, 2017. About 5,000 goldfish and 3,000 tropical fish are displayed in 130 uniquely shaped tanks. This unique art form uses fish along with LED lights, projection mapping and music in a show produced by Japanese Art Aquarium artist Hidetomo Kimura. REUTERS/Kim Kyung-Hoon

Women wearing traditional costumes take a look at installations using fish in illuminated tanks at the Art Aquarium exhibition in Tokyo, Japan July 6, 2017. About 5,000 goldfish and 3,000 tropical fish are displayed in 130 uniquely shaped tanks. This unique art form uses fish along with LED lights, projection mapping and music in a show produced by Japanese Art Aquarium artist Hidetomo Kimura. REUTERS/Kim Kyung-Hoon

Hoses fill a tank with water prior to the Art Aquarium exhibition in Tokyo, Japan July 5, 2017. Picture taken July 5, 2017. About 5,000 goldfish and 3,000 tropical fish are displayed in 130 uniquely shaped tanks. This unique art form uses fish along with LED lights, projection mapping and music in a show produced by Japanese Art Aquarium artist Hidetomo Kimura. REUTERS/Kim Kyung-Hoon

Staff put plastic bag holding fish into tanks as they prepare the Art Aquarium exhibition in Tokyo, Japan July 5, 2017. Picture taken July 5, 2017. About 5,000 goldfish and 3,000 tropical fish are displayed in 130 uniquely shaped tanks. This unique art form uses fish along with LED lights, projection mapping and music in a show produced by Japanese Art Aquarium artist Hidetomo Kimura. REUTERS/Kim Kyung-Hoon

Installations using goldfish in illuminated tanks are displayed at the Art Aquarium exhibition in Tokyo, Japan July 6, 2017. About 5,000 goldfish and 3,000 tropical fish are displayed in 130 uniquely shaped tanks. This unique art form uses fish along with LED lights, projection mapping and music in a show produced by Japanese Art Aquarium artist Hidetomo Kimura. REUTERS/Kim Kyung-Hoon TPX IMAGES OF THE DAY

Installations using goldfish in illuminated bowls are displayed at the Art Aquarium exhibition in Tokyo, Japan July 6, 2017. About 5,000 goldfish and 3,000 tropical fish are displayed in 130 uniquely shaped tanks. This unique art form uses fish along with LED lights, projection mapping and music in a show produced by Japanese Art Aquarium artist Hidetomo Kimura. REUTERS/Kim Kyung-Hoon TPX IMAGES OF THE DAY

Women wearing traditional costumes take a look at installations using fish in illuminated tanks at the Art Aquarium exhibition in Tokyo, Japan July 6, 2017. About 5,000 goldfish and 3,000 tropical fish are displayed in 130 uniquely shaped tanks. This unique art form uses fish along with LED lights, projection mapping and music in a show produced by Japanese Art Aquarium artist Hidetomo Kimura. REUTERS/Kim Kyung-Hoon

A man looks at an installation that uses goldfish in illuminated bowls at the Art Aquarium exhibition in Tokyo, Japan July 6, 2017. About 5,000 goldfish and 3,000 tropical fish are displayed in 130 uniquely shaped tanks. This unique art form uses fish along with LED lights, projection mapping and music in a show produced by Japanese Art Aquarium artist Hidetomo Kimura. REUTERS/Kim Kyung-Hoon