At 1", they will probably make it. How big are their parents? You
could try catching them in a minnow trap. Cut the neck off a 2 litre
bottle. Cut a 2" hole in the side of the bottle part near the base.
Reverse the top and stick it into the base (funnel them in). Put a mesh
bag with a draw string around the bottle. Put food in the bottle. The
small fish swim in and can't find their way out. If there is no hole in
the side, the fish suffocate. You can also do this with a bottle with
lots of small holes in the sides, but the food tends to mush out and koi
will such it out. Food in bottle draws them in the funnel. Works well
for mosquito fish and OK for goldfish.

Jim

KerplunKuK wrote:
While feeding my pond fish today I notice about 30 miniscule fry, maybe
2.5mm long. I would love to rear these and then reintroduce them back into
my pond. Can anyone give me advice on how to look after them, whether to
remove them from the pond, etc.

Thanks, a happy fish Daddy!