Unknown Fish

Unknown Fish

Observation - Unknown Fish - UK and Ireland. Description: A minimum of 12 of these fish have appeared in a small wildlife pond. Nothing has been introduced fr

A minimum of 12 of these fish have appeared in a small wildlife pond. Nothing has been introduced from the wild intentionally. They appear to prefer the shallow warmer end of the pond and are drowning very rapidly . Currently between 2 and 4 cm. the closest I have found is a picture of Young Carp.
The light stripe on the back is very distinctive