At this point, if there's still stringy feces after treatment with Hex-Shield, you should move onto levamisole. Treatment, if I recall correctly, is about 1/4 teaspoon of levamisole HCL per 75-100 gallons.
? Safe for freshwater, saltwater aquarium. Also safe for planted tanks, and invertebrates. to consult with a veterinarian trained in fish keeping. For aquatic use only, not for human consumption.Keep away from children.
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