Just FYI ... I emailed Marineland about the magnums with the micron filter being able to filter out the ick parasite, and the guy said yes. Good to know!
The guy did say that the micron filter clogs fast and needs to be recharged at the most after one week for an average tank. But I already knew that. I think most people keep at least 3 micron filters on hand: one in use, one being cleaned, and one dried and ready to go.