The ornamental design for a combinedaquarium and lightfixture, as shown and described.
FIG. 1 is a front elevation of the combined aquarium & light fixture, the
back elevation being a mirror image thereof, while the left side elevation
would show one elongated bar down the center, and the right side elevation
would show two elongated bars symmetrically spaced 120° apart;
FIG. 2 is a top view thereof;
FIG. 3 is a bottom view thereof.
The chains are omitted in FIGS. 2 and 3 for convenience of illustration.