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[APD] re minimum light threshold

i can assure you that there is a minimum light threshold, all plants
require a set ammount of light to live and more to flourish, if you
put a plant in a 3ft^3 dark room under a 3watt light it would not grow
unless it is some sort of low light plant like some mosses.  now if
you put the same plant in the 75ft^3 room under a 75watt light they
would grow great or have too much light depending on the plant..
the tank is like the room even if its small it will need the plants
minium light intensity before it will grow,
i have done this experiment outside of a tank on my orchids, the ones
under the smaller light withered and the ones under the bright light
in the larger room turned red as they had too much light.
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