Tuzz -
I have only freshwater shrimp in the pond, no minnows - although next year I am planning mosquitofish to combat THAT problem. I really don't think I have much of an algae problem other than the dark green tint to the water, but I could very well be wrong!
Ted -
Yes, I WAS running the originl Koenders'a 7" airstone. I have purchased the Aquatic Eco diffuser membrane (Flexair 9") that everyone mentions on here, it was definitely outperforming the stone (although by the time we drained the pond down the stone was beginning to be covered in mosquito larve pods).
I'm letting the pond dry out for a few days before I refill it.
So, no comments on the bacteria from Aq. Eco? I'm guessing most people feel it's not necessary?
