More Daphnia
Keller (pkeller@suffolk.lib.ny.us)
Tue, 27 Aug 1996 17:04:05 -0400 (EDT)
Old time fish growers used to place several leaves of lettuce in a
container of water and let it stew. In a few weeks you'll have more small
life than you can handle. They used it to feed their fry (baby fish).
But it can go bad so try and keep it outdoors.
The other method is to scrape some material from the bottom of a lake and
use that as a culture.