Treatment Protocol for Cloudy Eye
Fix water quality first — 50% water change, test parameters. If caused by poor water, eyes clear within 1-2 weeks with clean water. If bacterial (accompanied by swelling), treat with Kanaplex or Maracyn Two. Epsom salt (1 tbsp/5 gal) helps reduce swelling.
How to Identify This Condition
Look for these symptoms in your fish:
- One or both eyes appear hazy or milky white
- Possible swelling around eye
- May affect vision (bumping into objects)
Early detection is critical — the sooner you begin treatment, the better the prognosis. Observe your fish daily during routine feeding for any behavioral or physical changes.
Root Causes
Understanding what caused the problem helps you prevent recurrence:
- Poor water quality (most common)
- Physical injury
- Bacterial infection secondary to above
- Nutritional deficiency
Recommended Medications
The following medications are effective against Cloudy Eye:
- Kanaplex (if bacterial) — follow manufacturer dosing instructions. Treat in a hospital/quarantine tank when possible to avoid disrupting your main tank's biological filtration.
- Epsom salt — follow manufacturer dosing instructions. Treat in a hospital/quarantine tank when possible to avoid disrupting your main tank's biological filtration.
- Seachem StressGuard — follow manufacturer dosing instructions. Treat in a hospital/quarantine tank when possible to avoid disrupting your main tank's biological filtration.
Always have these medications on hand before you need them. See our quarantine tank guide for proper treatment setup.
Water Quality During Treatment
Maintain pristine water conditions during treatment. Perform 25% daily water changes using Seachem Prime as your water conditioner. Remove activated carbon from your filter during medication (carbon absorbs medications). Increase aeration with an air stone — sick fish need extra oxygen. Monitor ammonia and nitrite daily with your test kit.
Recovery & Quarantine
This is generally a mild condition. Most cases resolve within 1-2 weeks with proper treatment. Continue monitoring after symptoms clear.
Prevention
The best treatment is prevention. Follow these practices to reduce the risk:
- Maintain clean water
- Avoid sharp decorations
- Feed varied diet with vitamins
For a complete prevention strategy, read our quarantine tank guide and maintenance schedule.