Surface Film

[Key Equine]

My three week old tank has developed a serious case of surface scum. I don't have a skimmer yet, but am planning to get one in the next week or so. Any ideas on how to remedy this problem before then?

Also, I am planning to get the Deltec MCE300 skimmer, but from what I can tell it doesn't take water in from the surface of the tank... will it still help with the surface scum?

Thanks!