The ornamental design for an aeroponiccroptower, as shown and described.
FIG. 1 is a front elevation view of an aeroponic crop tower showing my new design;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a left side elevation view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a perspective view thereof.
The article is shown with a symbolic break. The appearance of any portion of the design between the breaks forms no part of the claimed design. The broken lines depicting holes in FIGS. 1-4 and 6 form no part of the claimed design. The broken lines also depicting plants in FIG. 6 form no part of the claimed design. The bottom surface forms no part of the claimed invention.