I had been a bit worried when the first clump of frog spawn in the nursery pond began to turn white as this usually means it wasn't fertilised. I need not have worried however as quite a few tadpoles have emerged from that batch and dozens from the second batch.
At least they are safe from the fish in the main pond so they should have a good chance of growing to a size where it will be safe to return them..
Signs and Signifiers
6 hours ago