Is this HLLE?

[JeffLED]

Hello and thank you in advance for your assistance. I have had a sailfin I purchased from live aquaria in QT for about 3 weeks Yesterday I noticed the small anomaly between his pectoral fin and eye. I had also just upgraded the lighting in the tank, so I cannot necessarily confirm whether or not it just appeared. Water quality has been maintained at a high level without any significant “events” in the QT tank - no medications or treatments have been rendered up until this point. Does this look like the start of HLLE?

 

[Suohhen]

I don't see any evidence of HLLE. Are you referring to the black spot below the eye of back by the gills?

 

[JohnMzreef]

I have a petco sailfin that developed a round ulceration above/behind an eye. I used seachem vitality food soak to arrest the problem and he is doing well. But there is an ugly round scar now unfortunately. I would recommend you start soaking your food as prevention. I don't think there is any reason not to.

 

[JeffLED]

I don't see any evidence of HLLE. Are you referring to the black spot below the eye of back by the gills?

That is what I was seeing and curious about. On the left side of the fish. I posted a photo of the other side for comparison.

 

[Suohhen]

It could be a scar, or patern abnormality but regardless it is minor and definitely not a symptom of HLLE. I definitely agree with John, nutrition is of the utmost importance and also make sure to refrain from the use of activated carbon as it is definitely linked to HLLE.