Abstract: A small animal visual burrowing module which includes a main burrowing enclosure body having an interior space defined by opposite walls spaced a short distance apart. The burrowing enclosure body is formed by two symmetrical body pieces. The main burrowing enclosure body has an open bottom, with a wire grate mounted across the open bottom. Two generally horizontal intermediate floors are symmetrically formed in the body pieces. Each body piece including at least one laterally extended viewing window. Ventilation openings of sufficient size and number to allow for air passage through the module are provided. A plurality of through openings are provided in the walls of the enclosure body, for the passage of small animals therethrough, with each opening having an outwardly protruding portion. The through openings are positioned along and split by a division plane defining the two symmetrical body pieces.

Abstract: A shelf system which provides a decorative ornament for use inside of aquariums or terrariums. A rigid planar sheet is provided with a means for removable attachment to the inside surface of the wall of an aquarium at any height along the wall. The attachment means does not alter the ability of the wall to hold water in the aquarium while maintaining a secure attachment to the inner surface of the aquarium wall. The shelf may be provided with ornamentation, particularly a decorative texture on the outer edge and it may be provided with a supporting column.