Can anyone tell me what colour hair algae turns when it dies? I
experimentally bleached one stem of anacharis for 1 minute. The hair
algae turned grey. That may mean nothing as my clothes turn grey also
under bleach. But this has suddenly made me aware that a lot of the hair
algae in the aquarium is now grey. I don't believe this was so some days
ago. Is this dead algae or another species of it?

I have placed Green-X AND Rowaphos in my canister filter to reduce
phosphates. The phosphates are less then 1 ppm today.

Nikki