White Spot on Cardinal Tetra

[mpertz]

I have 6 Cardinal Tetra's in my 20 gallon community tank. Have had them for about 3 or 4 months without any issues. The tank is fully established and has been running for about 5 months now. I water change 25% of the water every week. Today I came home and noticed a white spot on 1 of the 6 Tetra's and I'm not too sure what it is. I have a pictured attached if anyone can please help to identify this and what I should do.

Thank you.

 

[tyspot1000]

Welcome to AA!

I am thinking it is either Ich (Small white spots showing up mainly on the fins but also on the body. It looks like your tropical fish has salt all over it) or fungus (Cotton like growths on the body that may appear white or gray in color.)

Tyler

 

[dkpate]

I would say it's fungus, since ich is pretty much impossible, unless you have added new fish. And it looks a little big to be ich.
I would get some anti fungal meds.