this post was submitted on 30 Jun 2025
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Aquariums and Fish Keeping
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They look like scuds to me. Brine shrimp would not survive in fresh water very long. Personally, I think they are harmless fish food but some people may disagree.
They’re moIna! They look exactly like the picture halfway down this page: https://tropical-fish-keeping.com/moina-moina-macrocopa.html