White spots on fish fins and body are typically a sign of Ich (Ichthyophthirius multifiliis), a common and highly contagious parasitic infection. It can be deadly if not treated promptly. Treatment usually involves raising the water temperature (if appropriate for your fish species), adding aquarium salt, and using an over-the-counter Ich medication designed for tanks. Ensure you follow dosage instructions carefully and maintain good water quality during treatment. Speak to Dial A Vet via a video consult should you need further guidance.Clinically Approved Standard by Dial A Vet Veterinary Team
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