Fuzzy Film on my Mystery Snails

[daughter]

hi

i've noticed that over the last few days that my snails have both aquired a fuzzy white-ish film on their shells. I've been keeping up with water changes and stuff but i don't know what's building up on their shells. I don't think it's algae because it's white. I'm afraid that if i don't do something now it'll get worse

can anyone tell me what this is?

thanks

 

[DarkElf_Mairead]

Might be a fungus. I know you can buy something for that. I've seen it on fish, but nont on snails.