Newborn guppy fry are as easy to catch as dipping the net in the water under them and lifting it. They have no real speed to escape, which is why they must either hide or be eaten. A few days later they will have learned to swim and will be much harder to catch.
If you put those plant trimmings into a new tank with the fry, the plant growth will take care of the ammonia that the fry produce until they are big enough to be moved back in with the adults.
If you put those plant trimmings into a new tank with the fry, the plant growth will take care of the ammonia that the fry produce until they are big enough to be moved back in with the adults.