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RE: PCF light spread
"If you did need a bit more spread, you could mount
the light higher or
lower in the reflector, or bend the reflector out a
bit to increase the
spread of the light. You probably won't need to do
I have my 96 watt AH Supply PCF sitting right on the
cover glass. When I had Rotala rotundifolia a while
back, some of it was directly under that light and
some wasn't. There was a line right through the
stuff. Stems on one side were red and green on the
other. It was as if someone drew it with a ruler. Not
a gradual color change.
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