Does it look like this? Go to the Mystery Algae "book

Lee,
That is exactly what it looks like. Same as you had, the warmer it gets, the
more that rises to the top. When it is cool (at night), it all drops to the
bottom. Has been a little over 2 weeks now, darn 4 more weeks of it.
Terrible. Don't even know how the fish can breathe when it is all rising to
the surface. Did you do anything, or let it ride it's course? Thanks, Cathy