I'm new to this pond thing and I'm thinking of setting one up. I live in detroit, michigan, so it gets cold here.....sometimes very cold. I am thinking of either setting it up outside or in the garage. I am definately going to be using a heater strong enough to heat the water. What kind of filters would you recommend using. And what kind of fish could I stock in my pond..... if I use my garage I am thinking of getting a bunch of piranhas...the garage pond would be 300+ gallons.
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