Re: Light on an off

> From: u7211aa at sunmail_lrz-muenchen.de (Michael Irlbeck)
> > - light on for 4 hours
> > - light off for 2-4 hours (2 hrs. seems to be too little..)
> > - light on for 6-8 hours
> >Total:10-12 hours of light within a period of 12-16 hours.
> Has anybody tried this strategy against thread algae?

It didn't seem to affect any of our algae but we found it an effective
cure for Rotola macrandra and other high light plants, i.e., we lost
some very robust groves of these plants by messing with the light

George Booth in Snowy Colorado