Small pond fish - to save them (Tring HP23)

Nextdoor's pond has been abandoned, but there are a very few little fish in there, which are really struggling - I have permission to rehouse them. They are either goldfish or koi carp. Please, if anyone can help save them, I can catch them and bring them round. There are very few, maybe just a handful. Thanks in advance. Lee, Wilstone, Tring.