Betta with fuzzy white I just purchased 2 male bettas and they are in a 5 gal tank with divider, heater, filter etc. They both are eating fine, swimming fine, seem to be enjoying the larger space as opossed to the cups they were in in the store. One of them seems to have, just appeared overnight, some white fuzz on it's mouth. Any ideas what this is? It almost looks like a frozen brine shrimp that's stuck there, you know very small and fuzzy, but it's not. I've stared at it all morning. It appears to be just a film almost on the lower jaw. Anyone know what this could be? The other betta doesn't have it that I can tell, but he is cream colored, while the one that had it is dark blue so he may have it and I just can't see it yet.