Abstract: An improved decorative wall mounting for an aquarium is provided which comprises a tank having at least a planar rear panel, reinforced edging surrounding the top and bottom of the tank, first and second channel members extending respectively along the portions of reinforced edging provided on the planar rear panel of the tank, and a frame having a prominent interior border mounted therein complementary to the planar rear panel, a picture slot being defined within the prominent interior border, and having a recessed outer border supplementarily overfitting the planar rear panel of the tank, first and second laterally extending channels determined between the interior and outer borders, the first and second channel members overfitting opposite edges of the interior border and respectively registering in the first and second channels.