Heating a large pond

[John onofrio]

Hi everyone. I am new to this forum. I am trying to determine what is the best way to heat a 1500 gallon water tank to house tropical fish. Also if you have an opinion which type or model of heater would do a good job. I look forward to your comments and answers

 

[kiep]

Use pond de-ice with heat controller.

 

[eddiegunks]

Where ate you located? Out door or Indoor pond?