Deb, or anyone who cares to reply...
My pond is over 30 years old, although it's never been fertilized it has always produced well. I've never had surface weed problems or heavy algae growth until recently. My new neighbor upstream from me has built a pond of approximately 1.7 ac. He's been applying a highly concentrated fertilizer once monthly throughout the summer. I'm seeing jellyfish like blobs of algae in my pond now. Water clarity has remained the same. Should I be concerned?

The stream that supplies both our ponds drains a 190 acre watershed of mostly hardwood forest. I was of the opinion that the watershed provided enough nutrient to maintain a decent fish population.

Deb,I may seem to be answering a question with a question but, why has Georgia Giant quit fertilizing along with their stocking plans?
Thanks in advance for any replies,
Tim