Help, sick Jack Dempsey

[BGK21]

Hi,
Over night, my Jack Dempsey looked like a large piece of flesh was removed above his right fin and there has been white spots around it. I started to perform water changes and thought it was getting better but it has not been. I have been looking through the forum and potential diseases and I'm thinking it is fungus. I want to treat the issue but also want to make sure the others are not harmed. Unfortunately, I do not have another tank to use as a hospital. Any advice on how to resolve this?

I do have an established tank that has been running with no issues since 2012. It is a 65 gallon with some other cichlids in it. The water parameters are
Ammonia - 0
Nitrite - 0
Nitrate - 20-40
PH - 7.6

Filtration - Emporer 400 as well as Eshoppes WD-75CS
I normally perform water changes of 15% to 25% every one to two weeks and vacuum gravel each time.
I've had most of the fish in the tank for a couple of years at this point. No new additions anytime recently.
I typically feed tropical flakes and shrimp pellets or a combination of both.

 

[BGK21]

Hi,
Looks like it's starting to spread to my other fish. Do I have any hope? Increase water changes, salt, medicine? I know it's not ich....not sure what else to do?
Thanks in advance.

 

[michellev512]

I think you should increase your water changes to 35-50 percent per week to get your nitrates down. 15 to 25 percent every week or 2 doesn't sound like enough but I don't know your stock. Some salt could help him heal faster...


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[treemanone2003]

While I can't say for certain what it is from the pics, I can say you really need to get the WC's up to weekly and at least 30-50%. Most often (like 99.9999%) any problems with fish originate from poor water quality. Also, knowing the other stock may help to figure things out. And a brighter pic too


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[BGK21]

Thanks. I've increased the water changes but haven't seen much improvement. They are hanging in there. I'll increase the water changes and hope that works.
Thanks again for the thoughts.

 

[BGK21]

Here is an updated picture as of this morning. I have increased water changes and it doesn't seem to be helping much but he is holding on strong.