I think any fish will be damaging in a pond sadly.
In reply to James:
In reply to Jack Milton:
If your thinking of having any pond life, Jack, like insects in the pond of frogs/newts I don’t think you will succeed fish will eat anything that moves that’s why I don’t have any in mine.
But if it’s just for fish then they might eat some vegetation but not enough to cleat the pond.
We spend 90% of net income on conservation, public education and advocacy
The RSPB is a member of BirdLife International. Find out more about the partnership
© The Royal Society for the Protection of Birds (RSPB) is a registered charity: England and Wales no. 207076, Scotland no. SC037654