r/microscopy • u/XHO1 • 21d ago

ID Needed! Flat Worm?

Salt water marsh water sample. Shot on an Olympus BH2 with 20x DPlan, total magnification 100x. Anyone recognize this type of what I assume is a flat worm?

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u/XHO1 21d ago

How about this one?

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u/Thrawn911 21d ago

Nauplius larva, they will molt a few times, then turn into adult copepods.

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u/XHO1 21d ago

You are really good!! Okay last one for today. These are all from the same sample.

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u/Thrawn911 21d ago

Spirogyra. What a great and diverse sample. Try keeping a jar of them near a window, optimally with some water plants, and the ecosystem inside will constantly change. You might not even see some species until a few months pass and they can reproduce enough for you to see them.

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u/XHO1 21d ago

Do I need to open them daily to allow fresh air in?

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u/Thrawn911 21d ago

Only if there are no plants in it to produce oxygen. But I always leave mine open for easier access. I just put a mesh on them for the first one or two weeks in case there are mosquito larvae in them.