Originally Posted by
Buckaroo Banzai
That's what I thought also .
I guess it all depends on how much rain.
During the rainy season we get a lot of rain, I had to drain my pond almost every other day. Then some of my fish started dying, so I asked about it at the Pet stores. and did some research. I found out that rain changes the PH and consequently the ability of the water to absorb and hold oxygen. I also recently found out from a post in this forum and subsequent research, that at night , and at low sunlight days such as when it rains , plants aquatic consume more oxygen than they produce.
As I said , during the rainy season some of my fish started dying, after I put a tent over my pond non of my fish died anymore, and now that we don't have rain I am also not loosing any fish. So that is also confirmation that the rain was a contributing factor.