Uploaded April 2026 | Updated September 2026, 3 weeks ago

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SJ is a real live daphnia Wizard. She taught me so much on culturing daphnia!
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00:00 – Introduction to the "Daphnia Wizard" and his fish room setup.
01:00 – Choosing your main food source: powdered food vs. yeast.
01:28 – The dangers of Hydra and why you shouldn't co-culture them.
02:30 – Using "detritivores" (snails and blackworms) to keep the system clean.
03:40 – The "Fast Food vs. Slow Food" philosophy for culturing.
04:44 – How to use yeast without crashing your culture.
05:51 – Prepping yeast: using a coffee grinder for the perfect "dust" consistency.
06:22 – How much to feed: measuring the right scoop size for different tub sizes.
06:45 – The aeration debate: when oxygen is necessary for a mature culture.
09:20 – Feeding long-term "slow foods" like zucchini.
10:25 – Step-by-step harvesting guide: using the "cup and net" method.
12:40 – When to perform a large water change (and how much to change).
13:26 – Using cherry shrimp as a "canary in the coal mine" for water quality.
15:02 – Acclimating your strain to tap water vs. rainwater.
16:30 – Comparing strains: Daphnia Magna vs. Moina.
20:00 – Filter selection: why coarse sponges are better for live food.
21:19 – Managing "Green Water" and self-sustaining satellite cultures.
24:40 – DIY Green Water: how to start a culture with simple ingredients.
28:38 – Batch-style culturing in simple 5-gallon buckets.
30:10 – Troubleshooting pH crashes and calcium needs.
33:23 – Building your culture around your specific fish-keeping habits.
35:05 – Temperature sensitivity and metabolism for Daphnia.