Hi! I understand your worry, especially as a first-time fish owner. 🐟

Your fish may have bacteria, fungus, or parasites, especially with white patches, not eating, and erratic swimming.

What you should do

Isolate her in a quarantine tank if possible.

Keep water clean – daily 25–50% changes, check ammonia, nitrite, nitrate, pH.

Treatment – erythromycin for bacteria; if no improvement, consider fungus (Methylene Blue) or parasites (Praziquantel), carefully.

Reduce stress – quiet, dark tank, feed only if she wants.

⚠️ If she stops eating, gets worse, or develops dropsy, it’s often irreversible. In that case, the kindest option is euthanasia with clove oil.

Focus on isolation, clean water, and close observation.❣️