Stock tank guard

A stock tank guard comprising:

• A. A plurality of support poles fixed along an exterior perimeter of an existing livestock water tank;
• B. A guard structure comprised of a plurality of interchangeable guard members, wherein said guard structure hangs freely from said plurality of support poles by a plurality of separate lengths of material capable of supporting tensile load;
• wherein
• each separate length of material is directly connected to a top end of said plurality of support poles and a top horizontal row of said plurality of interchangeable guard members, wherein said top horizontal row in the horizontal plane comprises a shape and diameter approximately equal to a shape and diameter of a top border of said exiting livestock water tank;
• and
• C. Said guard structure is situated over said existing livestock water tank, which creates a space between a bottom horizontal row of said guard structure and said top border of said livestock water tank for a livestock animal to access water in said livestock water tank;
• wherein
• D. Said guard structure moves to allow said livestock animal to access said water in said livestock water tank but deters said livestock animal from entering said livestock water tank.