Rotting in fish scales / body, started out as a white blotch

[jaws7777]

Correct i had no idea what the illness was. I suggested he post in this section hoping someone would chime in with useful info.

Yup sure ok you suggested columnaris after op after someone else (king el) suggested it. Have a nice day man

 

[Coryloach]

I am not suggesting its columnaris. I agreed it is possible. If I thought it is columnaris for sure, I would have said so in the first place. I already explained why it may not be columnaris though I am not fully excluding it.

You have a problem with me but please keep it to yourself. I am also trying to help. Unfortunately my type of help doesn't float your boat. However, my only intentions are towards the well being of the fish and I don't care one bit if I am "likable" for spitting out what it is.

 

[jaws7777]

 

[kno4te]

Don’t think it columnaris. It would’ve killed the fish by now. The poly wouldn’t last 24hrs. Most polys don’t get columnaris and its not a cichlid. Likelyhood is very low. The issue is the floating end as well. Think it’s infection but from perforated viscous spreading to the outside skin. Or vice versa with skin infection spreading to the gut. Triple sulfa will treat this. Kanamycin will treat this too but it’s way more gram neg.

Appreciate the input C Coryloach and the concern. Columnaris is a concern. These are just my opinion. Essentially we are treating empirically sometimes.

At this point for the sake of this thread. Let’s keep it civil C Coryloach J jaws7777 .

 

[Coryloach]

Columnaris has another couple of alternative names: Mouth Rot or Saddle back disease because it tends to affect the mouth and the area around the dorsal.

Here is a picture of one of my harlequins from 2 years ago with columnaris. It progressed very fast and killed 3 of 9 fish new fish within days. I treated with kanaplex and I still have the surviving 6 fish. That fish below died within an hour of the picture being taken and just before my first dose of antibiotic. The only affected area were its mouth and dorsal. I second one died after that. The third actually jumped out of the tank so 2 columnaris losses in general. There were 2 baby clown loaches in the tank, one also had a parasitic infection which was subsequently treated. I still have both. So columnaris is treatable but only if its not too late.
However, the symptoms of your fish are not entirely fitting what I have observed.

 

[Superbia]

To add to why I did not suggest columnaris in the first place, is because the OP already tried Primafix and although not the strongest of meds, it had no effect on the fish. Columnaris should have responded to an extent to Primafix, although seachem kanaplex would be a better choice.

Pimafix is an antifungal med. Columnaris is a bacterium. I doubt pimafix would have done jack.

Imo the melafix helped delay the severity of the disease--by a large margin if it were really columnaris.

 

[Coryloach]

Primafix has an effect on the bacteria causing columnaris.

 

[Coryloach]

Pimafix is an antifungal med.

Just to add to the above. Fungal infections are for the most part bacterial. People just call them "fungus" because of the way some of the symptoms look.
True fungus is rare and it is easily remedied by increasing the temps above 26C-27C. It doesn't like it warm, unlike bacterial infections.

 

[philipraposo1982]

I have dealt with a strain of columnar is which was extremely deadly. Which was wiping out large numbers of corydoras and red cherry barbs in mere hours. I lost over 40 fish in less than 3 days. Very aggressive deterioration of the flesh all showing the Saddleback signature.

Lowered the temp to 74 and treated with furan2 plus kanaplex to resolve this.

There is different strains of this disease and not all of which act very quickly.

Columnaris disease in fish: a review with emphasis on bacterium-host interactions - Veterinary Research

Flavobacterium columnare (F. columnare) is the causative agent of columnaris disease. This bacterium affects both cultured and wild freshwater fish including many susceptible commercially important fish species. F. columnare infections may result in skin lesions, fin erosion and gill necrosis...

veterinaryresearch.biomedcentral.com

 

[jaws7777]

At this point for the sake of this thread. Let’s keep it civil C Coryloach J jaws7777 .

Said my peace. Glad his thread is getting attention and some useful information