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Re: [APD] Fwd: Re: Rotala rotundifolia
All light bulbs get steadily darker as they get older.
Non-phosphor LEDs might be an exception. But certainly all
incandescents, fluorescents, and sealed arc bulbs like MHs.
Luckily, they tend to burn out before they lose mroe than
about 10%-25% of their output. (IF you call that luck ;-) )
--- Greg Fiske <gfiske at sbcglobal_net> wrote:
> "Weird thing happened. After about a year my Rotala
> rotundifolia as
> started growing sideways only instead of upward."
> Another thing that might have happened is that the light
> intensity dropped even though you didn't touch the
> lights. I've noticed my 36 watt getting black at the
> ends of the bulb because I think there is not enough
> ventilation in my hood. It finally showed in my plants,
> they all started growing very differently. My Rotala
> started growing sideways (like it was trying to get as
> much light as possible) and my glosso straight up.
- - - - - - - - - -
at the AGA 2004 Annual Convention -- Nov -- Baltimore
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