Bruce and/or Doc Willis, can you elaborate on this? I find that you guys generally have a good reason for pickiness and I just might learn something here about the tools Biologists use or their methodology. Doc, neat website full of great toys for a guy like me. Thanks.

Quoting from Lusk's book "Raising Trophy Bass":

"Make a white disc, put it on a cord, lower it slowly into the water. If it disappears before 18 inches, do not fertilize. If visibility is between 18 and 24 inches, it's just right."

"If the disc disappears beyond 24 inches, consider fertilizing."

"Many pond pros tell their customers to stick their arm in the water, to the elbow, and look for fingertips. If the water is so cloudy or rich that you cannot see the fingertips, the water needs no additional nutrients. Do not fertilize. If you can see two feet beyond your fingertips, it's time to consider adding fertilizer."

OK, not everybodys span from elbow to fingertips is the same length. Nor are skins all the same color. I don't see how to really figure out whether I can see 2 ft. beyond my fingertips without making or buying a sechi.

Do Biologists use a professionally made tool to eliminate the questions of whether the string was accurately measured or whether the disc is of a real shade of white? It appears that it makes sure you guys are all on the same page.

It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.

Without a sense of urgency, Nothing ever gets done.

Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP Grandpa