My three FA eaters were 6 Israeli Carp, 20 KOI carp and Channel Catfish for my one acre pond. These did a great job for me. At the time I had 18 GC that denudided my submerged plants and so those plants played no part in the FA control.
This was my pond free of FA using the fish combination above with some control of FA by the above water lilies.
This was my pond the spring after my winter fish kill that wiped out my fish. Notice the FA around the log. But also notice how the above water plants stop the FA from going on out into the pond.
Now you see the same log without the FA that my fish controlled before they died in the winter fish kill. Absolutely no FA in the same area.
Now notice in this picture there is no FA out in the center of the pond when I didn't have above the water plants controlling the FA but just the three fish species I mentioned.
Another picture of the shore showing just a slight trace of FA but kept well in check. In my opinion besides using the three algae fish eaters if you can get the GC numbers about right you can also control the submerged plants but to do this it take time my adding some and watching the results over a year or two and then adding more if need be.
