By Request - green tank pics
 

For all you who've yet to share my pain, here is something apparently rare. Note the big difference in the "before" and "after" pictures.

The difference is six weeks. "After" is the present state, as of this week.

Enjoy. :(

Before:
http://members.shaw.ca/reefs/greentank_before.jpg

And After:
http://members.shaw.ca/reefs/greentank_after.jpg

Woo-hoo...

Alan

By Request - green tank pics
 

Alan, I hope you don't mind, but I am going to move this into the main forum in the hopes that it might foster some ideas to help you out.

Six weeks. What an unimaginable nightmare. I don't think it should take this long to clear up.

Can you post the particulars as to size, age of system, what you have been doing so far to try to deal with this (carbon, water changes, diatom filters, anything like that).