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JeffyFunk · 05-17-2012, 03:47 AM

Macro solutions - Normally stable and do not go bad. Can be preserved w/ ~5% Excel.

Micro solutions - More unstable (due to the intrinsic nature of Fe). Store in the dark or refrigerate. Can be preserved w/ ~5% Excel. If micro solutions go bad, it's usually due to mold / fungus growing in solution.

All solutions can (eventually) support algae growth so checking for algae or growth in the solutions bottles periodically is a good idea. This is also why the addition of Excel is a good idea.

05-17-2012, 03:47 AM	#2 (permalink)
JeffyFunk Senior Member Join Date: Apr 2006 Posts: 260 iTrader Ratings: 2 iTrader Positive Rating: 100% Plant Points:	Re: Macro and Micro going bad Macro solutions - Normally stable and do not go bad. Can be preserved w/ ~5% Excel. Micro solutions - More unstable (due to the intrinsic nature of Fe). Store in the dark or refrigerate. Can be preserved w/ ~5% Excel. If micro solutions go bad, it's usually due to mold / fungus growing in solution. All solutions can (eventually) support algae growth so checking for algae or growth in the solutions bottles periodically is a good idea. This is also why the addition of Excel is a good idea.