Not to be confused with the Porthole.

The Porthole Fish Tank is a non-member den item that was released in October 2011. It can be obtained from the Journey Book as a prize for finding all the animals in Deep Blue.


The Porthole Fish Tank is a large steel porthole with red algae stuck to some areas of it, and pegs around the perimeter. A scenery of the midnight zone of an ocean can be seen within the porthole, where a dark kelp forest can be visible in the background and three fish – an anglerfish, hatchet fish, and viperfish – swim into view once in a while. This item comes in only one variety.