Terry from Ventura, California writes
I have a concrete fountain approximately 15 - 20 gal. It gets mid-day sun only. no fish, and very hard water. good aeration from water falling and algae grows VERY fast. I have ferns around the fountain.
Cutrine Plus is intended for large bodies of water and cannot be used in fountains. At this moment we don't carry anything labeled to treat algae in a small fountain. You may need to check your local stores to see what they have that may help.
We were able to find a couple articles that may be offer other tips to care for your fountain:
Answer last updated on: 08/06/2021