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White Stringy Poop in Aquarium Fish: What It Means and When to Worry
by Bob Steenfott June 09, 2026

White stringy poop is one of the most common symptoms observed in aquarium fish, but it doesn't always indicate internal parasites. Learn the most common causes, how to evaluate accompanying symptoms, and when the issue may require further investigation.

Posted in fish diagnosis, fish losing weight, fish not eating, fish poop, fish symptoms, hole in the head disease, internal parasites, white stringy poop

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