Why is there foam in my pond?
The most common reason for foam in a pond this time of year is that your fish are doing the Spring thing. Yep, even the fish are gettin' busy in the Spring. The wise old owl told Bambi that every living creature gets "twitterpated" in the Spring. Well, your fish are living creatures! If you've noticed a foaming in your pond that comes and goes, don't panic. It's simply your fish responding to Spring's siren call. Love is in the water, and so are excess proteins. If the foam in the pond is a bit fishy smelling, then that is what's going on and it should be gone in a couple of days, and there's no need to treat it. You might also notice that the fish are quite active, tearing around the pond and even jumping. This type of thing can also happen in the Fall.
There are a few potential causes of foam in your pond.
Over-application of pond bacteria can create foam in the pond temporarily, in which case there would be no odor accompanying the foam and it will dissipate in a few days.
Another cause of foam in a pond could be a dead animal in the pond and you will need to locate and remove it immediately.
Soap being thrown in the water can obviously cause foam in a pond. This typically doesn't happen to backyard ponds, but if you have a front yard pond or it's in a commercial location, it's a possibility. In this case, the pond will have to be drained, cleaned, and re-started. This would also kill the fish. If this has happened to you, you have our sincere condolences. And may the bad karma of whoever did it be swift!
So, if it's just your fish being twitterpated, no worries, all will settle down again shortly. If it's something else that you need help with, don't hesitate to call us at 623-572-5607.
Barbi Holdeman, co-owner of The Pond Gnome, enjoys sharing their 17+ years of education & experience with you! She writes about Phoenix Ecosystem Pond Installation, Pond Maintenance, Wildlife around the Pond, Koi and Goldfish in the Pond, and the Pond Lifestyle. If you enjoy what she writes, please share it!
Disappearing Pondless Waterfall or Stream