According to the aquarium's website, they use artificial seawater in all of their tanks, making it easier to sustain the aquarium year-round and removing the costly requirement to transport natural seawater inland.

[2] This is done using a seawater production system developed by Nagaoka University of Technology and Taisei Corporation.

The aquarium worked with the village of Ogasawara to create the exhibit, and more than 50 different species of fish, including sand tiger sharks, were transported from the islands.

[5][6] At its opening, the aquarium displayed a tank of 634 spotted garden eels, representing the 634 metres of the Tokyo Sky Tree.

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