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Old 04-07-2009, 06:27 PM   #149 (permalink)
Seattle_Aquarist
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Default Re: glutaraldehyde instead of excel

Hi MartialTheory,

I mix is at 1.5% concentration. Some of my tanks get "normal" dosage per Excel instructions; other tanks get 2X dosage if I have an outbreak of algae starting.

I don't have any problems with my plants at 2X dosage except for my Vals (but not Sags). My Vallisneria grow 24" tall without Excel / Glut and 2"-3" tall with it. They still send out runners and look healthy except for being stunted. Who knows, this may be a way to develop a new "dwarf Val"! LOL Instead of Vals I use tall (18") Eleocharis species (Giant Hairgrass).
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