Fish that are cave dwellers particularly enjoy any kind of aquarium decoration that forms holes, caves and crevices. And, fish that are used to living in densely populated waters definitely appreciate having aquatic plants in their environment and other kinds of small hiding places.
In addition to the type of aquarium decoration that brings a sense of nature into the tropical fish tank, there is also a huge array of aquarium decorations that would not be found in natural fish habitat settings. For instance, you can add fantasy sea monsters, shipwrecks, buried treasure chests, Egyptian pyramids, statues and temple ruins to bring some interest and variety for the aquarium viewers.
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