crystal clear

• To: Aquatic-Plants at actwin_com
• Subject: crystal clear
• From: rutenber at msg_ucsf.edu
• Date: Sat, 8 Mar 1997 19:55:50 -0800

>I think that a number of people on the list are in an advanced state of 
>denial as to what constitutes "crystal clear" or "colorless" water.

>This is the test.  Fill a five gallon white polyetheylene bucket with 
>water from your aquarium.  If the water appears to be light blue, then 
>you are the proud owner of nearly humic acid free water.  If it looks 
>just plain white, or yellowish, it isn't colorless.

>That said, almost all successful planted tanks have some yellow color to 
>the water, whether their owners are willing to admit it or not.  ;-)

Well, actually, we ARE willing to admit it, but that is not what we
were talking about...  "crystal clear" (or even just "clear") means
'transparent, free of cloudiness'.  Clear does NOT mean 'colorless'.

Earl

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