Any suggestions? Can the neighbors file a complaint about this. Its
really
loud.

We love our tree frogs.
Tell your neighbors that they could just fire up their
gas weed eaters and leaf blowers and drown out the
sound of the frogs.
As far as your pond attracting the tree frogs.
We have them all over around here, there are lots
of trees, they just come to our pond to breed.
We hear them singing all around at night, not anywhere
near the pond.

Ron in NC