Algea ID help

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laempchen115

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I am having trouble with a brown/greenish algea that seems to clump together as strings. Can anyone help me identify the algea(s) that are the culprit. Microscope images attached.
20260402_105825_5924D1C1-2A77-49D1-A925-5546B840C944.png

20260402_105924_981DEC5F-DC16-499E-A928-7231A2578D59.png

20260402_105925_984B51B0-EAC2-4FE6-812B-2DEBB095C5D6.png

20260402_105926_52673EE5-9697-4E72-B682-F79DB2E9F4FC.png

20260402_105928_22D88C87-1618-4394-BC2C-0FAFFB7CCB03.png
 
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