Tank

FIG. 1 is a top plan view of a tank embodying my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a bottom perspective view thereof; and,

FIG. 7 is a left side perspective view thereof.

The broken lines depict portions of the tank that form no part of the claimed design. The dot-dash-dot broken lines define the bounds of the claimed design and form no part thereof.