outside pond

Question
i have an outside pond with rain water running through it, Lilly pads and
there are
frogs and tadpoles in it. I'm thinking of getting fish but i just wanted to ask if
i
need a filter or lining, and I'm getting koi or gold fish you know witch ones
better for my pond?

Answer
Hello Joe!
It is probably not a good idea to add fish to the pond unless you know for sure that the run-off rain water cannot possibly carry fertilizer or such from the surrounding area.
If it does not, then adding a few Goldfish would be okay. Koi will get very large and need a lot of filtration and excellent water quality.
Brigitte