yabadaba
Fish Crazy
Hi, the Red Severum in my 5ft community tank developed these 'fuzzy' spots/growths on his pectoral fins some months ago and although they tend to come and go to an extent they never go fully so I think it's time I considered medication. The tank is established and has had no other known disease and no mortalities in the last three years. All the other fish appear completely healthy and the Severum is acting as normal, as though the spots are not bothering him. I do a 50% water change every week and tests always confirm no ammonia or nitrite present.
Please can anyone advise what this is and what medicine I should consider. Here are a couple of photos - not brilliant but you should be able to make out what I'm talking about.
Please can anyone advise what this is and what medicine I should consider. Here are a couple of photos - not brilliant but you should be able to make out what I'm talking about.

