Danielle's Rare Betta splendens

Betta splendens Fish Swollen Eye Disease and Cures



Low water quality and most probably physical injury.


  • Swollen cloudy eye.
  • Different swimming style (blurred vision)


  • Change water with fresh water pre-treated with methylene blue
  • Add a pinch of salt (aquarium salt preferred, but other salt works for emergency)
  • Make the water temperature slighty warmer than previous.
  • Introduce the betta splendens to the new water, give  penicillin.
  • Repeat every 2 days.
  • Choose the less mobile food for the fish.


  • Change water regularly.
  • Pre-treat water with me methylene blue and salt before introducing betta splendens.
  • Monitor water temperature.


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