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Re: Spectrum page

In a message dated 98-02-18 04:19:05 EST, Aquatic-Plants-Owner at actwin_com

 Hi all,
 I finally put the diffraction filter I got from Wright Huntley (thanks,
 Wright) into use and made a number of spectral photographs of the light
 bulbs I have used or are lying about the house.  They are available on the
 web, accessible through the main page of my aquarium web site (see
 signature below).  Also available there is a diagram of my DIY CO2 system,
 which has been running great for 3 years.

What is the URL?