Oh, I am running a blackout starting last night. With any luck I can
get regain some control of this thing.
What do you think? I read in a book (I think) that algae can only take
advantage of a long period of light, while plants can take some
advantage of several shorter periods. Any experience with that? Could I
run my lights for just two hours several times a day and cut down on
algae growth?

my aquarium page, info and pics at:
www.geocities.com/spiral_72/Spirals_page.html