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Re: Daphnia, yeast, and stuff -Reply
There are, I agree, numerous species, varieties, and related genera of what
hobbyists call Daphnia. Only a few of these are really suitable for hobbyist
aquaculture. I keep lights on my Daphnia cultures 24 to inhibit the
development of resting eggs. The strain I have is very resistant to producing
resting eggs, but I don't want them thinking it is winter and time to shut
down. If you feed yeast, blenderize it until the water it's dissolved in
starts to warm up. This will make it more digestible. Sprinkling powdered milk
to slightly cloud the culture water works better than yeast. Sometimes the
yeast begins to grow and coats the Daphnia. Don't overfeed powdered milk. The
result is an odor best not described, but familiar to those who have cared for
babies. I recently eliminated the Daphnia magna strain I had from Carolina
Biol, and just keep the Daphnia I obtained years ago from the Russian Daphnia
maintained at Belle Isle Aquarium in Detroit by Jim Langhammer. He fed them
commercial pea soup mix 10 parts and Spanish paprika 1 part. My staple Daphnia
food is a variation of that. I use frozen peas, with a smaller part of
carrots, or beets, or spinach, or sweet potato, or broccoli blended with
vitamins until liquified.