Good points on the aeration. I just started it yesterday after lunch. It is in the deep part of the pond. I only ran it for 30min at a time and only about 5 times total so far. It gave off no smell. The pond is new, so I don't think there is much decaying muck on the bottom. I've been loosing fish since last Wednesday when I stocked them, at a rate of 10 per day. I let them acclimate for 15 min in their bags before releasing. I expected to loose some from stress the 1st couple days, but didn't think it would continue for a week. I'll have to inspect the fish better for the points you questioned.
