Symptoms of Ammonia Poisoning in Fish
Ammonia poisoning can happen suddenly or over a period of days. Initially, the fish might appear to be gasping at the surface for air. Their gills will take on a red or lilac color, making them look like they're bleeding.
What does ammonia burn look like on fish?
Signs of Ammonia Burns
Signs to look for are: Ragged or frayed fins. Cloudy eyes. Rapid gilling.
Why is my goldfish fin turning red?
Fin rot is caused by several different types of bacteria, including Aeromonas, Psudomonas and Vibrio, that eat the delicate membranes of the fish's fin, leaving behind the fin rays. The frayed, damaged tissue is then susceptible to secondary fungal infections, which exacerbate the sickness.
