This Head of the Harbor house, on the market for $1.19 million, is centered around an indoor atrium filled with trees, plantings and a koi pond.

Six koi are in the pond, says Paulette Lust of Daniel Gale Sotheby's International Realty, the listing agent and home owner.

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"In Japan they're treasured, and they're passed from generation to generation in their wills," says Lust, who will be leaving her koi to the next owner of the home. "It's beautiful to see them growing."

When the koi become too large for their indoor pond, they can be moved to a bigger pond outside, which can be viewed from the kitchen, living room and dining room.

The house has four bedrooms and two bathrooms. Two of the bedrooms along with a full marble bathroom are downstairs, while the other two bedrooms and another marble bath are upstairs, Lust says.

"One of the downstairs bedrooms, or both, could be master bedrooms if you don't want to use the upstairs bedrooms as masters," Lust says.

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Also on the first floor is the kitchen, which has two skylights.