Pond stagnation usually produces a strong smell of rotten eggs, and is often noticed during Spring when water begins to naturally circulate due to temperature and weather changes. … The smell is caused by bacteria which slowly breakdown waste at the bottom of a pond using enzymes.
How do I get rid of pond water smell?
- Install air diffusers at the bottom of the pond. They will circulate the water throughout the depth of the pond. …
- Add a water feature, such as a fountain or a waterfall. …
- Check the pond’s filter media daily after installing air diffusers or a water feature.
Do fish ponds stink?
It is normal for ponds and lakes to have sludge or muck on the bottom, but too much can become a problem. Muck is the collection of organic waste from the pond, and as you can imagine, it doesn’t smell pleasant. When it builds up too much in shallow areas of the pond, you will notice a swampy, sewage odor.