fungus, infection or ???

[vnzlnboardguy]

No there was no previous damage. Should I take the carbon out of the filter. Also how do I treat with salt and can do both melafix and salt?

 

[HULON]

No there was no previous damage. Should I take the carbon out of the filter. Also how do I treat with salt and can do both melafix and salt?

Ya you can treat with salt and melafix no problem.Don't freak melafix smells like eucalyptus and the water foams a bit