Hi Marc-
Yes, I read the article a while back and have employed the "manual
harvesting" method you described. It works well, but my back can only take
so much of that. My tank is an "in-wall" type of setup. I have to lean in
from the back of the tank. I was thinking of scrubbing the rock with a
toothbrush. What do you think of that idea?
-Tom

"Marc Levenson" wrote in message
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Tom, have you read this article yet?

http://www.melevsreef.com/gha.html

Marc

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