Fish that already have gill mites that are introduced to your aquarium. Mites feed on the gill tissue and blood of your fish.
Preventions : Keep new fish in a quarantine for up to a week before placing them in your aquarium.
- Gill covers will be partially open
- Gasping for air at the surface
- Remove and carbon filters
- Turn off UV sterilizers
- Add medication as directed (Parasite and fungal medications)