I've never heard of a red freshwater algae before today, and I found few
references. Are you sure it's algae, and not something someone dumped in
there?

Anyway, one of the refs I found:
http://www.geocities.com/Heartland/R...html/algea.htm

What I read in various places suggested that a diatom filter may help.



"Mark Garmaise" wrote in message
news
I have red algae all over my 2 month old 72 gal. freshwater tank ,
especially on the plants . Looks like red dust . I've tried a sheet to
cover
the tank , but I'm not sure if it's having any positive affect .
Suggestions
?