Listing: New homes for fish. Available immediately. Spacious, great floor plan, located in an excellent neighborhood. Open habitats include airplanes, shipwrecks, concrete pyramids and contemporary fiberglass structures. All dwellings have a spectacular ocean view.

For the last 50 years, some of Hawaii’s most beautiful natural reefs have been disappearing — reefs that are home to more than 7,000 known species of marine plants and animals, one-quarter of which are found nowhere else in the world. These coral reefs have been threatened by alien invasive species, overfishing, land-based pollution, ocean debris and detrimental climate changes.