Entire pond died since yesterday and these bubbles/foam appeared. Any way to test or know what happened?
Like the title says, went out this morning and my entire pond was dead, all 16 goldfish and 2 koi. Everything seemed normal yesterday but today they’re all gone and there are a lot of bubbles on the surface which weren’t there before. We got a decent bit of rain yesterday so I’m wondering if something could have runoff from the neighbors up the hill doing construction, or something else? Is there a way to test the water for something that could have runoff? Any suggestions on how to figure out what happened would be appreciated.
Edit: Thank you all for your help and kind words. My wife and I are devastated but the support and insight in really meaningful. For more context, after reading some comments I retested the water using two different test kits and got these results, if it may help shed some more light on what could have happened.
- Total PH was low, about 4-5
- Alkalinity (KH) was in the ideal range about 120ppm
- Hardness (GH) was in the hard range between 150-180ppm
- Ammonia was in safe range - not 0 but below 0.5ppm
- Nitrate and nitrite were both elevated in the stress range but not maxed, no3 was 80ppm, no2 was 3ppm
- Chlorine was 0