Cotton Wool Disease (Saprolegnia)
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About this condition
A fungal infection caused by Saprolegnia at wound sites, appearing as white cotton-like tufts. Low water temperature and weakened immunity often trigger the condition.
Common symptoms
- White cotton-like growth on body surface
- Sluggish movement
- Loss of appetite
- Symptoms originate from wounds or injuries
Common causes
- Water mold (Saprolegnia) infection
- Wounds or injuries on body surface
- Low water temperature
- Weakened immune system
Prevention (husbandry & daily care)
Prevent fish aggression, maintain water quality, treat injuries early.
Related species guide
→ Browse the species guide for this animalWhen to see a vet
Monitor; consult a specialist store if it worsensWhat can a specialist store do?
A veterinarian or specialist will confirm the fungal infection and advise on a treatment plan suited to the severity. Specific guidance on water temperature management and water quality improvement is also provided.
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Other conditions in this animal
Ich (White Spot Disease)Consider consulting a specialist store within a few daysFin RotConsider consulting a specialist store within a few daysAeromonas InfectionConsult a specialist store or experienced keeper promptlyDropsyConsult a specialist store or experienced keeper promptlyVelvet Disease (Oodinium)Consult a specialist store or experienced keeper promptlySwim Bladder DisorderMonitor; consult a specialist store if it worsensPop-Eye (Exophthalmia)Consider consulting a specialist store within a few daysNeon Tetra DiseaseConsult a specialist store or experienced keeper promptlyHole-in-the-Head Disease (Hexamita / HLLE)Consider consulting a specialist store within a few daysAnchor Worm (Lernaea)Consider consulting a specialist store within a few daysGill Fluke (Monogenean Infection)Consider consulting a specialist store within a few days