Seachem Flourish Iron question

syzygy9 · 02-20-2013, 10:37 PM

OK...odd question, but does this stuff change color over time? I just finished the last of my 250ml bottle that I'd bought maybe 1.5 to 2 yrs ago and it was red...really really deep dark red, but I just opened my brand new bottle at it's a yellowish color (and yes I shook it up well).

Shortly after buying the first bottle I switched to dry EDTA iron dosing for about 6-9 months and then switched back so I don't remember what color it started off.

Seattle_Aquarist · 02-20-2013, 10:40 PM

Hi syzygy9,

Per Seachem it has basically an unlimited shelf life but any of their products with iron in them will discolor over time.

Zorfox · 02-20-2013, 11:05 PM

I believe iron becomes red when it absorbs oxygen (oxidation). Basically you have a bottle of rust lol

Sharpchick · 02-21-2013, 01:54 AM

Seachem handles this question in their FAQs. They say one batch may be one color and another, another color. BUT - they say, it has absolutely no effect on the product.

cpeterson9 · 02-24-2013, 08:10 AM

Should be fine iron tends to change color over time

02-20-2013, 10:37 PM	#1
syzygy9 Planted Member (View User Tanks) PTrader: (7/100%) Join Date: Aug 2010 Location: Austin, TX Posts: 195	Seachem Flourish Iron question OK...odd question, but does this stuff change color over time? I just finished the last of my 250ml bottle that I'd bought maybe 1.5 to 2 yrs ago and it was red...really really deep dark red, but I just opened my brand new bottle at it's a yellowish color (and yes I shook it up well). Shortly after buying the first bottle I switched to dry EDTA iron dosing for about 6-9 months and then switched back so I don't remember what color it started off.

02-20-2013, 10:40 PM	#2
Seattle_Aquarist Planted Tank Guru (View User Tanks) PTrader: (26/100%) Join Date: Jun 2008 Location: Seattle, WA Posts: 2,043	Hi syzygy9, Per Seachem it has basically an unlimited shelf life but any of their products with iron in them will discolor over time. __________________ *Roy* 45 Gallon Tall; 96 Watt AH Supply CF; 6700K; & 30 Gallon Long; 2X36 Watt AH Supply CF; Press. CO2; UGF; Heat Treated Montmorillonite Clay Greater Seattle Aquarium Society (GSAS)

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02-20-2013, 11:05 PM	#3
Zorfox Planted Tank Enthusiast (View User Tanks) PTrader: (5/100%) Join Date: Jun 2012 Location: Jacksonville, FL Posts: 578	I believe iron becomes red when it absorbs oxygen (oxidation). Basically you have a bottle of rust lol

02-21-2013, 01:54 AM	#4
Sharpchick Planted Member (View User Tanks) PTrader: (0/0%) Join Date: Feb 2013 Location: Mabelvale AR Posts: 198	Seachem handles this question in their FAQs. They say one batch may be one color and another, another color. BUT - they say, it has absolutely no effect on the product.

02-24-2013, 08:10 AM	#5
cpeterson9 Algae Grower (View User Tanks) PTrader: (0/0%) Join Date: Jan 2013 Location: so cal Posts: 18	Should be fine iron tends to change color over time