What is this??? Any ideas???

I have been treating them with jungle labs fungal cure. and I haven't see any results from that....
 
I had a similar problem with a cory. It had a whitish round growth at the base of its dorsal fin. I left it alone and it a went away after a few weeks and the fish is fine and that was 2 months ago. Hopefully the same thing will happen here.
 
AquariaCentral.com