[lopex1234]

My Paradise fish turned pale a few days ago and stopped feeding. She has now got very nasty looking red marks on her gills and head.

Anyone know what this is? How do I make her better?

 

[longtail4711]

Have you checked ammonia levels in the tank? My first thought is ammonia poisoning.

 

[TheFishLegend]

Yeah I think it could be ammonia poisoning but I am not an expert.