It wasn't stagnant, it had plants growing in it to keep it oxygenated. And
my dog drank out of it, so I had to keep topping it up with fresh water.
So maybe it wasn't very attractive to skeeters after all, I dunno.

If the fish are distressed by low oxygen levels, they stay very near the
surface, move slowly, kind of gasp at the surface, and they have worried
looks on their faces. (OK, I made that very last part up)

Bob

That actually sounds like a good idea. Did the fish actually eat the
misquitos or larvae? And how long did they live? I have a small pond I've
been thinking of putting some small fish in. I can't put bigger fish, like
goldfish, because the racoons eat them.