I agree that these gelatinous globs are very probably composed of the Cyanobacteria genus called Rivularia that has around 20 different species. It often grows in clear water that can have a good amount of calcium content. The gelatinous coating protects the Cyano (bluegreen) filaments in the colony and makes it difficult to kill chemically. I would not at this point try not to kill it. Let nature take its course. Be watchful of its development.


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