Floor Guide

Water's Blessing Tokyo Tank

Tokyo’s only World Natural Heritage site - The beautiful ocean world of the Ogasawara Islands

A huge tank designed on the theme of the ocean world of the Ogasawara Islands, where 450 fish of 50 different species, including grey nurse sharks and stingrays, swim around.
As they gaze upon the rich, deep, crystal blue waters of the tank, recreated with the cooperation of the village of Ogasawara, visitors will sense the definite connection between the blessings of the water and the lives of the creatures that live in those waters.
Sumida Aquarium brings the ocean world of the Ogasawara Islands, a remote World Natural Heritage about 1,000 km away, right here for visitors to see.

Aqua Scope

Behind Tokyo’s giant tank is a row of small round windows. If you peek inside these windows, you can experience what it feels like to be submerged under the sea.

Creatures encountered in this area

Grey nurse shark, round ribbontail ray, spotted moray eel, giant moray, blotcheye soldierfish, red lionfish, starspotted grouper, honeycomb grouper, white trevally, bluestripe snapper, goldspot seabream, scissortail sergeant, Pacific drummer, etc.

Penguins

You’ll want to meet them again and again! Watch cute penguins frolicking in the water

The Majellan penguins live in one of Japan’s largest indoor open tanks, which holds about 350 tonnes of water.
The tank features a two-level atrium exhibit space, with visitors able to view the penguins swimming in the water from above on the 6th floor and from the side and below on the 5th floor. Also, by sharing the same space as the penguins, instead of looking at them on the other side of the tank’s glass, visitors can observe each penguin’s behavior and expressions more closely. You might even get splashed by the penguins!
(※)ORIX Real Estate Corporation research

Environmentally-friendly LEDs are used for the lighting, which changes as the day progresses.
During the day, visitors can watch the penguins frolicking in the water in lighting that is bright enough to simulate natural daylight, and, at night, encounter penguins sleeping peacefully in dim light.

Creatures encountered in this area

Magellanic penguins

Jellyfish

Feel the rhythm of life in the magical world of jellyfish

The sight of numerous jellyfish floating in tanks of varying sizes transports all who see it from ordinary daily life into an extraordinary world. Jellyfish are said to have remained unchanged for hundreds of millions of years, and their beautiful, other-worldly appearance evokes a sense of timelessness as they move slowly and gently with the changing lights.

Creatures encountered in this area

Moon jellyfish, Japanese sea nettle, spotted jelly, color jellyfish, Cassiopea, Rhopilema hisphidum, Tima formosa, Leuckartiara octona, Sanderia malayensis, etc.

Fur Seals

Be surprised and delighted by their majestic motion! Fur seals swimming energetically

The South American fur seals in the large indoor pool-type tank.
Visitors can watch the fur seals from above as they relax on land and glide and turn smoothly through the water. By sharing the same space as the fur seals, instead of looking at them on the other side of the tank’s glass, visitors can see the energetic way they swim in the water from up close.

fur seal tunnel

In this tunnel, visitors can also look up at the pool where the fur seals live from below.
Enjoy the sight of the fur seals swimming majestically through the sparkling water from a variety of angles.

Creatures encountered in this area

South American fur seals

Natural Aquascap

Learn about Mother Nature’s intelligence and beauty from a tiny natural world

With the assistance of Aqua Design Amano Co., Ltd., we have concentrated an entire natural aquatic ecosystem into a single tank.
Small oxygen bubbles produced by photosynthesis on the surface of the water plants, sparkle as they sway with the water.
The aquatic creatures in the tank (fish, shrimp, and micro-organisms) use that oxygen to breathe, and the aquatic plants use the carbon dioxide produced by the creatures to perform photosynthesis again.
In this one tank, as the aquatic life interacts with each other, this cycle of life is repeated over and over again.
The creation of this beautiful tank, which is modeled on the natural world, makes us realize anew the intelligence and beauty of Mother Nature.

Creatures encountered in this area

Cardinal tetra, rubra red phantom, black phantom tetra, rosy tetra, harlequin rasbora, lambchop rasbora, Denison barb, pulcher, etc.

Coral Reefs

Creatures living in the rich coral seas

The many and varied scenes created by the beautiful coral reefs and the colorful creatures that gather around them can be viewed from four tanks. The tanks can be viewed from all angles, so visitors can enjoy the completely different expressions the creatures show, depending on the surface and angle they are seen from.
Coral reefs are also referred to as the “cradles of the sea.” Visitors can see how those reefs provide hide-outs and spawning sites for the creatures that live there.

Creatures encountered in this area

Yellow tang, manybar goatfish, whitetail dascyllus, blueband goby, tomato clownfish, Stichopus sp., Kenya tree coral, sarcophyton, bushy sea rod, Acropora tenuis, spotted garden eel, splendid garden eel, Japanese bullhead shark, humphead wrasse, redbanded grouper, etc.

Edorium

Encounter the history and culture of goldfish at this downtown aquarium as you gaze upon these beautiful creatures.

The Edorium was re-opened after renovations in 2016, which made it one of Japan’s largest* goldfish exhibits.
With its design theme of “Edo,” the exhibit space has been given an other-worldly decor with a Japanese feel. About 20 breeds of goldfish are on display, including the wakin, ryukin, and ranchu.
In addition to the tanks for viewing the goldfish from the side, there are also tanks that can be viewed from above, allowing visitors to appreciate the goldfish’s different body shapes and the beauty of their tails and fins.
The Edorium includes exhibits based on the three main goldfish colors, namely, red, sarasa (red and white), and calico (red, black, and blue), and exhibits that teach the history and culture of goldfish.
(*) One of the largest permanent exhibits in an aquarium (among members of the Japanese Association of Zoos and Aquariums) Sumida Aquarium research.

Creatures encountered in this area

Wakin, Ryukin, Ranchu, Telescope, Edo Nishiki, Azuma Nishiki, Comet, Tancho, Ping Pong Pearlscale, Sakura Ranchu, Bubble Eye, Celestial Eye, etc.