Re: Light on an off
> From: George Booth <booth at hpmtlgb1_lvld.hp.com>
> > 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 Rotala macrandra and other high light plants, i.e., we lost
> some very robust groves of these plants by messing with the light
Likewise the 4 days of darkness did little to eliminate green algae
bloom (or any other algaes). It did cause almost all of the Hydrocotyle
leucocephala leaves to turn white after the treatment. New leaves appear
to be ok.