"Richard Sexton" wrote in message
...
In article ,
Dave S wrote:
How can I sterilise newly purchased plants before adding them to my
aquarium?

Against procaryotic alge: peroxide 1:10 for 15 mins.
Against green algae: bleach 1:20 for 4 minutes
Against everything: copper sulphate. I'm unsure of the dose.

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although I have beached many plants in the 1:20 solution I would not
recommend it or at least for that long for many plants including crypts and
fine leafed plants. You may want to limit that time for no more than 2
minutes and even then expect losses.

Rick