drussell89, welcome to Pond Boss!!

Because you mentioned draining the ponds as a possibility, what are your water sources for filling the ponds back up, if you went that route?

In some areas of the country, having the pond fill back up with rainwater run-off can be quite a gamble.

Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."