Cyst/Bubble on Goldfish

[GreenSorceress]

Any ideas on what this cyst or sac on my crown pearlscale goldfish could be? Ammonia and nitrite = 0, Nitrate = 10, GH = 300, KH = 40, pH = 6.4, Temp = 78. I know I should probably add some more crushed coral to get the buffer/pH higher.

 

[Zenzo]

On 9/27/2021 at 8:00 AM, GreenSorceress said:

Any ideas on what this cyst or sac on my crown pearlscale goldfish could be? Ammonia and nitrite = 0, Nitrate = 10, GH = 300, KH = 40, pH = 6.4, Temp = 78. I know I should probably add some more crushed coral to get the buffer/pH higher.

 

In this photo, it appears to be an egg. Have you noticed this fish trying to lay eggs? It could also be a bit egg-bound, and may need some gentle assistance getting the eggs out. 

It does appear to be a little bit further down from where the eggs are deposited from. Maybe this is an egg that got stuck to her.

 

[GreenSorceress]

Thanks for the response. I'm fairly confident this fish is male because I noticed breeding stars on his pectoral fins last spring. There is one fish in this aquarium that could be female, but I haven't seen any breeding behavior.

Also this fish has been a bit lethargic, so I think it might be an infection. But since he is a crown pearl scale I was wondering if they were prone to 'skin' conditions.

[Zenzo]

Hopefully it's nothing serious, and maybe just an egg from another fish stuck to him.

[Kathy F]

I swear I read something about this once but I can't recall the details.   The issue was specific to pearlscales and I don't keep them so I didn't pay much attention.  Your best bet is try a goldfish specific group or forum.   Maybe message Gary Hater on Facebook (long time goldfish breeder) to see if he has insight.