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White paint
Victor wrote:
This exact same topic was discussed on one of my reef aquarium list a
couple months back. One person, Dana Riddle (www.aquaticwildlife.com),
has
done many lighting studies on many types of light (MH, VHO and PC). He
found that a white surface did indeed reflect as well as the metal
reflectors. The only problem was that after sometime, 'painted' white
reflectors turned yellowish and were less affective. Someone on that
list
is starting to use white rain gutters as a reflector and he will report
to
the list if the white 'powder' coated metal 'yellows' over time.
Being a grower of many different kinds of plants for most
of my life, I have tried just about everything under lites
at one time or another. I've probably read every publication
on the subject, in English, on growing plants under lites.
One common item,in these writings, has always been a list
on reflectivity values. And flat white paint has always been
near the top of the list. It's cheap, it's easy and when the
paint 'yellows' get out the paint brush! It ain't rocket
science and your plants will bearly know the difference. Your
wallet will!
Michael
--
Michael Serpa * Bay Island Orchids
2311 Pacific Avenue * Alameda, CA 94501
Tel: (510) 521-8245 * Fax: (510) 865-1787
http://www.bayislandorchids.com