Methylene Blue Or Salt Dip?

[daizeUK]

One of my threadfins has a small fuzzy white patch on its pectoral fin and a tiny 'beard' hanging from its lower lip.  I've seen this before when there was a mild case of cottonmouth in the tank due to an injured platy.  When that happened it all cleared up after three weeks using Melafix but honestly I'm not sure how effective the Melafix was, it may have just cleared up on its own.  This time there have been recent additions to the tank which probably triggered it again.
 
I'm suspecting that the fuzz is a mild form of columnaris (possibly type AJS3, which is one of the more non-lethal forms).  Recommended treatment for mild columnaris seems to be a dip in either salt at 1% solution or methylene blue.
 
Any advice on which treatment I should use, the 1% salt dip or the methylene blue dip?

 

[WILDER]

II think I would just add some myxazin by waterlife to the tank. If you still are having mild out breaks of columnaris.
Just make sure the mouth is not rotting away.

 

[daizeUK]

Thanks Wilder.
 
I didn't know anything about Myxazin so I went and looked the ingredients up in an old thread:
 
Formaidehyde 0.12% w/w
Malachite Green 0.085% w/w
Acrflavine Hydochloride 0.055% w/w 
 
So as I understand Malachite Green and Acriflavine are dyes similar to Methylene blue, but probably at a milder dose.
I'm afraid this will kill my plants and shrimp
 
Do you think Pimafix might help instead?

 

[WILDER]

OK.
Also lower tank temp.
 
 
Is possible to remove plants and inverts.

 COLUMNARIS
 
The hospital tank should be heated to approx. 74 degrees. 76 and above is the ideal breeding temperature for columnaris. Though there is some dispute over lowering the temperature, my experience has been that 72 is too low for the medication to work rapidly, 76+ causes the disease to breed more rapidly than the anti-biotic can kill, and 74 is "just right." Remember to keep this temperature stable!
 
Text © Lauren Weeks