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Re: Plants turning brown?

Boris Kaushansky wrote Jan 15:

>Actually, the browning is not a coating.  Its seems to have started along the
>edges and progresses to the center of the leaves.  Their isn't any brown algae
>growth anywhere in the tank, just very small areas of green.
Magnesium deficiency appears in older leaves and develops from the edge and
moves inwards.  However, Magnesium deficiency is usually yellowing of
leaves, rather than browning of leaves.  You might try adding some
magnesium sulfate (epsom salts) to see if it does any good.

Paul Krombholz, in soggy, chilly central Mississippi