Just saw a snake grab a frog. I jiggled the rock it was hiding under and I
guess shook the snake up because the frog. which was nabbed by the foot,
got away. There is a gray portion near its foot and another on its body
that looks like it is where the snake also had its mouth. Didn't see any
broken skin. Although, come to think of it, there was some red around the
place on the body when the frog swam away.

Think it was a garter snake. If I am remembering right it was a fairly
bright green with yellow stripes the length of its body. The top of its
head was also green.

It all happened so fast that I am not positive.

How can I get rid of it without tearing all the rocks out. Does anyone
know?