Fungus?

[Cantareadio]

Is there a white fungus? The big one has it on the left side of his mouth and the little one may have it on his body. They're both usually very active but suddenly are lethargic
The tank heater was off since yesterday morning and was 72 degrees which is 6 degrees less than I usually keep it.
I have a 55 gal tank, is there any way to treat it? I don't have a quarantine tank
Thanks

 

[Cantareadio]

I think my skunk shrimp is gonna try to eat him he keeps inching his way closer

 

[melosu58]

Cant really see from the picture. Is is white tufts or is it like someone sprinkled sugar on him. The cleaner shrimp is probably trying to clean the fish by taking parasites off him. Big temp. swings are not good for fish. Not sure if that is the reason though. What are your water test results?

 

[Cantareadio]

Didn't intend for the temp swing, a kid came over and unplugged the heater =\

The big one has it in the mouth and the little one on his body. I'm surprised the little one is still alive this morning. The white is worse on both today. Weird how it's just on my clown fish and no one else.