White "mold"? On Aquarium Plants

[Fisherella]

Can someone help me figure out what this is? I noticed my 10 gallon freshwater aquarium has started growing white stuff on some of the plants and moss balls. I have 3 nerite snails, 1 betta and 2 albino corydoras in the tank. The corys and snails are newer to the tank. I havent tried to remove it. I think it might be from over feeding but I cant find any info on this anywhere. I also have a lot of debris floating around in my tank which started after I added the corys.

 

[shellyx]

To me it looks like food particles that's settled on your plants. What's your cleaning schedule? I would gentle wipe down the leaf and vacuum it up, then not feed as much.