Whacky, what kind of algae? I seem to get an algae bloom every time i get a sharp change in one of my parameters.
I have found in my marine tank, reduced lighting, or even a day without lighting will have a dramatic effect on algae blooms.
And I believe you are right about the skimming. In a newish tank, there is not enough protein built up to bind everything together to skim out the algae spores. But since algae clings and multiplies, I don't think much of it would ever see a filter or skimmer, thus resulting in my having to use the lighting solution to my algae beakouts.