Daphnia

The recovery or death of the daphnia depends therefore on the issue of the struggle.

The water-flea, Daphnia (a crustacean), lays two kinds of eggs known as “summer” and “winter” eggs.

Some of these belong to the genus Daphnia, and differ from the species found in other situations by their glassy transparency.

Both Daphnia and Cyclops are bred in stagnant water in which there should be a good stock of weeds.