Re: [GSAS-Member] Hair Algae (was Excel? Glut?)

["Seattle_Aquarist" <Seattle_Aquarist@comcast.net>]

Hi Shango,

 

Glutaraldehyde is the active ingredient in Flourish Excel.  Flourish Excel
(not Flourish Comprehensive) is used as an alternative to using CO2 gas in a
planted tank to provide the carbon that plants need to grow.  Excel also has
been found to have algaecide properties.  Apparently this knowledge has been
around awhile but I found out about it at the GSAS talk by Luis Navarro last
spring.  Here are a couple of posts with more information:

http://www.aquaticplantcentral.com/forumapc/algae/3806-flourish-excel-got-ri
d-all-my.html

 

http://www.aquaticplantcentral.com/forumapc/south-western-ohio-aquatic-plant
-enthusiasts/31615-glutaraldehyde-instead-excel.html

 

It took some digging, but I was able to find a website in India where an
analysis was done of Excel.  It was determined that Excel contained a 1.5%
concentration of Glutaraldehyde.  Excel costs about $10 per liter ($20 for a
two liter) plus shipping on line and more if purchased locally.  A liter of
50% concentration Glut, which makes 33.333 liters of 1.5% concentration,
costs about $56 including freight and Hazmat charges.  That equates to about
$1.70 per liter.  Hope this helps!  Roy 

 

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