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DarkCobra · 12-28-2005, 09:53 AM

Wasser,

Nice system.

I don't know if you've solved the fungus growth in the trace solution yet, if not here's some info. All of this is taken from original discussions about PMDD on TheKrib's website.

To prevent fungal growth, add 0.5mL 9M HCl (hydrochloric/muriatic acid) per 300ml H2O. (Source link)

EDTA, the chelating agent used on iron in the trace mix, is known to be photosensitive once in liquid solution, and is best kept in the dark. Another person made the comment that at pH above 7.0, 80% of FeEDTA will decompose after two weeks. That may be another good reason to use the HCl! (Source link)

12-28-2005, 09:53 AM	#31 (permalink)
DarkCobra Algae Torturer (View User Tanks) PTrader: (2/100%) Join Date: Jun 2004 Location: Baton Rouge, LA Posts: 665	Wasser, Nice system. I don't know if you've solved the fungus growth in the trace solution yet, if not here's some info. All of this is taken from original discussions about PMDD on TheKrib's website. To prevent fungal growth, add 0.5mL 9M HCl (hydrochloric/muriatic acid) per 300ml H2O. (Source link) EDTA, the chelating agent used on iron in the trace mix, is known to be photosensitive once in liquid solution, and is best kept in the dark. Another person made the comment that at pH above 7.0, 80% of FeEDTA will decompose after two weeks. That may be another good reason to use the HCl! (Source link)