Another possibility, that I haven’t tried, is green dye. It cuts down on photosynthesis.

If you stock fish of any kind they will spawn. Possibly over spawn, and cause an O2 shortage with a resulting die off. Every fish needs a predator. So, you may need something like fatheads or gambusia matched with hybrid bluegills. Some have found that hbg have a tendency to nip swimmers. I haven’t noticed that but it has been reported here.

No real sure thing, bullet proof answers.


It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.

Without a sense of urgency, Nothing ever gets done.

Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP