a0761177_and_Treat_Problems____PetSmart__3
[0] Poor Water Quality [2] Rapid gill movements, inflamed gills, excess mucus on skin, fins clamped to sides, lying on bottom, rapid deaths of multiple fish [4] Test water quality frequently; conduct periodic water changes; ensure good aeration and filtration of the aquarium water. [3] 
Test water and conduct a 25% water change. If no improvement occurs, use an ammonia remover, aquarium salt or an appropriate water- quality-improvement product.
Diagnosing Fish Ailments: How To Analyze and Treat Problems. | PetSmart
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