Until the plants developed this spring, I floated a thin sheet of foam insulation board on the pond to provide shade and protective cover for the fish. The duty frog thinks I put it there for his perch.
I do not feed the goldfish - they have done quite well on their own for years and do multiply.
My principle algae problem has been string algae. Periodic applications of AquaOne have proven helpful in keeping it under control.
I have a 120 gallon pond with 2 goldfish and a pump to circulate and airate the water continuosly. The problem with algae starts when the temperature gets above 85 degrees. It has been currently running about 90 to 110 degrees. I have been using algaecide once a week but the water still looks green. Should I increase the algaecide ?