Daphnia/Ostracods

  1. Flush new jars with hot tap water for about one minute each before using.
  2. Fill clean, rinsed jars approximately one half full with Daphnia and dechlorinated tap water from established culture. Try to leave debris behind in the jar.
  3. Top off these jars with fresh dechlorinated tap water.
    • I avoid using chemicals such as NovAqua and StressCoat. While these probably won’t cause problems with your cultures, water can be dechlorinated by letting it sit out for a period of 24 hours. That’s one less thing you’ll have to troubleshoot if something goes wrong.
  4. Place on shelf under LED lights and sprinkle a pinch of crushed Carolina Protozoan pellets or small particles from an Alfalfa bale into the jar every 2-4 days.
  5. Place the unused, dirty Daphnia jars into the sink, fill with tap water and
    add a little bleach (approximately a 10% solution) to each one.
  6. Top off with dechlorinated water as needed.

I usually keep about 3-4 jars of Daphnia on hand…just in case something unexpected happens. The cultures should probably be replaced/restarted when there is substantial debris build up on the bottom of the jar (~1″).