Re: bleach treatment

Dave Whittaker recently wrote:

>Used Paul Kromboltz bleach treatment on some cuttings of rotalla
>rotundifolia covered in beard algae. Seven minutes in the bath instead
>of two resulted in the eventual decay of all of the leaves, but the
>stems survived and the plants recovered. Six weeks have passed and
>there is only a bit of brown algae on the glass of their new home,
>probably from the unsterilized filter. Bleach works.

Thanks for the endorsement, but 7 minutes is a lot longer than I have ever
treated a plant.  For a plant like rotalla rotundifolia, I would probably
do two minutes.  R. rotundifolia, however, is a tough little plant, unlike
R. macandra, which really goes downhill fast once it is pulled up or cut.
The longest I have ever treated a plant was 4 1/2 minutes, and that was a
plant with a very thick stem.  If you really want to get rid of the hair
algae forever, you have to treat the tank that is going to be their new
home, also.

Paul Krombholz                  Tougaloo College, Tougaloo, MS  39174