Ponds And Lightning

[interele]

Is it possible for a pond to get hit by lightning and not trip the pump?
Alternatively can anyone offer any suggestions on what happened to our fish.
A couple of days ago the pond was clear and the fish were fine. Then the next day 3 out of the 10 were dead. They had no obvious injury but overnight the water went a cloudy, bluey-grey colour ( I tested the water and it it fine chemically even though it looked terrible ) The remaining fish were gasping at the surface even though the pump was still running and they continue to do so for several hours . The lily leaves which were fine and green look a bit charred ( which led to the lightning theory ) Within a day the water has cleared and the remaining fish have started to feed again and seem none the worse.

Ta

Mal

[Giggsie]

I too am interested what could have happened here.

[Tuvok]

blue algae?

[AuntPollyGrey]

Could someone have tipped something in the water? Slug pellets?