On Fri, 3 Mar 2006 21:42:18 -0800, "Daniel Morrow"
wrote:


I grew an amazon swordplant to much greater size by lighting through the
glass side of the tank it was in and it grew allot in a short amount of
time. I had the light closer to the plant this way because normally the
light has to be at least a foot above the water surface so the popping
bubbles don't get onto the bulb too much because if it does the fluorescent
screw in bulb will die. But I stopped keeping the light coming in from the
side after a certain point because some hair algae started growing on the
glass that had the light real close to it. Good luck and later!

You must be losing a lot of light if you are keeping it a foot above
the water. Why not add a glass cover and set the light housing
directly on the glass, elevate slightly only if the bulb touches the
glass. The glass will also slow down evaporation, conserve heat, and
(better double check with the plant experts) reduce the rate at which
your water is losing CO2.

-- Mister Gardener