Taken a look through the thead again to see if we have missed anything.
Not much to go on apart from the fins and finrot can be a secondary infection.
Going to just look into flukes as they are a big killer as well, eye flukes, gill flukes, skin flukes.
Signs of flukes are.
Being thin, lethagic, flicking and rubbing against objects, laboured breathing, red inflamed to bleeding gills, or pale gills with excess mucas on them, spitting food out, sores on the body of the fish, opaque body, swimming in a jerky movement.
Flukes cause bacterial infections.