For sale is a acrylic box that has a hinged lid and all sides, top, and bottom that are vented. These hang from the side of your hang and are adjustable in height, will fit on any tank that has a wall thickness or frame less than 1 3/16"

For all you mushroom heads out there, this is a perfect box to keep those expensive mushrooms that have fallen off their rock or just a place to keep safe from high flow, or for any soft or delicate coral. Also use for anemone or fish.

The size is 4.5x4.5x4.5, brand new, still in box.