Pond Boss Forums MANAGING AN EXISTING POND Evaluating and adjusting fish populations Bass Dying all of a sudden

I think the O2 was low because we received a lot of rain and the cool water did a bit of a turnover (not too bad as I didn't observe BG at the surface) and it also completely killed the Bloom that was helping keep the O2 levels high.

I can see why the bass hiding under dying water shield would die but they also died in areas were I sprayed herbicide but the water shield wasn't very affected. Maybe it was affected enough to stop producing O2 during the day?

One of the reasons I want to cut back on the water shield was that by middle of summer it gets so thick the bass are almost impossible to catch under it. I also suspect it is making it hard for BG to breed in shallows as all the shallows get very congested.

On plus side I plan to stock a bunch of shiners this week and they might have a chance to catch on. Pond was probably near peak bass load before the die off. Pond has a bit of a bloom going now.