A couple of weeks ago, my sarasa comets began chasing each other. I put this
down to the fact the weather had warmed up which had probably turned them
frisky. Assuming they have spawned, when will I begin to see the fry?

At the moment, I have some oxygenators at the bottom of the pond, and a
patch of duckweed about 2 sq/ft where they could hide. All other marginal
plants are very close to the surface so they have no where to hide there.

Alex