Fungal infections in Betta fish can manifest as white cotton-like growths or fuzzy patches on the body, fins, or mouth. If you suspect your Betta fish has a fungal infection, below is some general information on how Fungal infections are often treated. See Columnaris, if suspected.

• Check Water Parameters:
  • Test the water parameters (ammonia, nitrite, nitrate, and pH) in the main tank and/or quarantine tank. Poor water quality can stress the fish and exacerbate fin rot. Perform a partial water change if necessary to improve water conditions.
• Maintain Water Quality:
  • Ensure the water in the quarantine tank is clean and free from any harmful substances. Perform regular partial water changes as needed to ensure the parameters are in check.
• Maintain optimal water temperature:
  • Bettas are tropical fish and require a water temperature between 78°F to 80°F (25°C to 27°C). When changing water ensure the new water is the same temperature to avoid shock. Use a reliable aquarium heater and thermometer to maintain a stable temperature in the tank.
• Quarantine Tank (Optional):
  • If you have a separate quarantine tank, isolate the affected Betta fish to prevent the spread of the infection to other tank mates.
• Remove Organic Debris:
  • Remove any organic debris, uneaten food, and dead plant matter from the tank. Fungal infections can thrive in dirty environments.

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• Common Medication:
  • Treat the Betta fish with a suitable antifungal medication. Common ones used are Ich-X, Maracyn (erythromycin), and Kanaplex,
• Follow the manufacturer’s instructions for dosage and application carefully.

• Avoid Stress:
  • Keep the Betta’s environment calm and stress-free. Stress weakens the immune system and can hinder the healing process.
• Monitor Behavior:
  • Keep a close eye on your Betta’s behavior and condition. If the infection worsens or spreads despite treatment, consult a qualified fish veterinarian for further advice.
• Complete the Treatment:
  • Continue the antifungal treatment for the full recommended duration, even if the visible signs of the infection improve. This ensures that all fungal spores are eradicated.
• Optimize Diet and Nutrition:
  • Offer your Betta fish a balanced diet with high-quality pellets, flakes, and occasional treats like frozen or live foods. Good nutrition supports their immune system and overall health, aiding in the recovery process.

It’s essential to identify the fungal infection correctly and ensure that it is not confused with other diseases that may require different treatments. If you are unsure about the diagnosis or the appropriate treatment, consult a qualified veterinarian experienced in fish health. Early detection and appropriate care are crucial for successfully treating fungal infections and ensuring the well-being of your Betta fish