Here is a link to a video I took this afternoon. It's taken with a point and shoot camera so the focus goes in and out as the larvae swim by but you can get a good look at how they are developing. The larvae were messin' with me and as soon as I'd get myself together on one side of the tank they would go to the other side. I think I went back and forth at least ten times and this is what I got for my efforts!
At least there are glimpses in focus.