White Spot (Ich)
Ichthyophthirius multifiliis
High severity ⚠️ Contagious
The most common aquarium parasite, appearing as grains of salt across the body and fins.
Symptoms
Tiny white spots like salt grains on body and fins, flashing or rubbing against objects, clamped fins, rapid breathing and lethargy.
Causes
A protozoan parasite triggered by stress, chilling, or introduction of infected fish. Outbreaks often follow a temperature drop or new additions.
Treatment
Raise temperature gradually to 28-30C to speed the parasite's life cycle, then treat with a proprietary ich medication (malachite green/formalin) for the full course. Increase aeration and perform daily gravel-vac water changes. Treat the whole tank, not individual fish.
Prevention
Quarantine new fish for 2-4 weeks, avoid temperature shocks, and maintain stable, clean water to keep fish stress-free.
FAQ
How long does ich take to cure?
Is ich contagious?
This information is general guidance, not veterinary advice. Consult an aquatic vet for serious cases.