Carrie Ford Posted March 9, 2022 Share Posted March 9, 2022 Hi! I keep having to clean my tank glass and assumed it was algae, so I got a couple nerites. It's still coming back tho and someone else online had a picture of what I would have thought was algae on the glass, but the photo/video said it was hydra. Is this algae or hydra? Link to comment Share on other sites More sharing options...
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