Water tank for indoor plant cultivator

FIG. 1 is a front perspective view of a water tank for indoor plant cultivator showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a perspective view thereof showing the water tank for indoor plant cultivator within a broken line environment of use.

The portions of the water tank for indoor plant cultivator shown in broken line in FIGS. 6 and 7 form no part of the claimed design. The broken lines in FIG. 8 show environmental structure only and form no part of the claimed design.