I did post about the Silver dollar on the other forum around a month ago I would say. Long story short after Christmas, a particular Silver dollar of approximately 9 to 10 years old developed a lump on its side. After doing some research, and posting on another forum that is active and discussed multiple freshwater species, it seems to be that this fish has a terminal lump and that I should just keep the water conditions as pristine as possible and then decide what to do if it got bigger and if it affected the fish’s swimming, etc.
Over the last couple of weeks I have noticed that the lump has been changing in size and shape. A couple of days ago it looks like the lump took on a dimple. Then, the lump came to a head like a pimple. Finally, it has opened up completely and is exposing… Something! It’s like the body wants it expelled.
I don’t expect anyone to explain to me what it is and what the prognosis is, as I had this fish dead and buried a good month ago. And yet it eats and it comes out when I sit in front of the tank thoughit stays behind the plant for the rest of the day. I don’t know what to make of it but again, I find it interesting enough that I would like to post some videos of the progression of the lump/cyst from late December until today. Thanks. Fran.
PS: I just finished a water change and the fish is definitely more active while this is happening. Interestingly it is clearly noticeable that the foreign thing in the body is coming out even more. So as the fish is more active it is expelling whatever it is. I’m going to try to get another picture or video right now so you can see the difference a matter of minutes made. Now I’m worried about the gaping hole that will be left and infection setting in! Or if the fresh will be enticing to other fish.
*********************IT CAME OFF DURING A FEEDING!!!
A few points I have which you might want to have a look at:
**Refers to open sores on the fish's body. Usually caused from the bacterium Vibrio that forms a lump on the fish's skin and eventually hemorrahages. The ulceration gives the appearance of one or more round eruptions of the skin, with red abscesses or red edges around the ulcer.
Some more random link explaining possible causes but I am sure there is more if you search for ulcers.
https://www.pondexperts.ca/pond-advice- ... -goldfish/
I don’t think it’s an ulcer because it’s a gaping hole now. You don’t see any redness or pus. I did add salt, guiltily. It must burn awfully.
I am lucking out because we have today and Monday off from school. So at least I get to observe this entire weekend.
I would change water often (yeah, that again!). I don't see redness or ulceration, so that's good. Salt likely an OK treatment for now.
At ~10 years old, your fish are aging & stuff can happen or eventually "resolve" after years of a low level problem or old injury. I'd consider an antibiotic if the area becomes red, but I'm not sure which 1 to suggest, maybe a 1-2 punch for both gram negative & gram positive, like Maracin 1 & 2...but WAIT, change water & see before doing that.
Yes, definitely sticking to water changes only and will continue that as long as I don’t see anything funky. The fish came out to chow down again tonight. I’m afraid the others may sense an open wound but it hasn’t happened yet...I have nothing to lose I guess. Pretty interesting case though, right? I just don’t want to see it get harassed. So far, hiding for over a month now, it hasn’t gotten picked on.....
If you're to use bacterial meds, be careful with the rest of the fish plus biological filtration.
Like I said, do what you can in a reasonable way; that's all you can do. I don't see a need to invest $100+ on what may be end of life care. Fish get old, get cancer, infections or whatever. Do not beat yourself up on this, you're doing all you can!
This is what it looks like as of today. I agree, I wouldn’t want any of the other fish to pick it up. That’s why I observe daily and hope that if anything happens I’m home for it.
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