Seachem Flourish Iron question - The Planted Tank Forum
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 02-20-2013, 11:37 PM Thread Starter
Planted Member
Join Date: Aug 2010
Location: Austin, TX
Posts: 198
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.
syzygy9 is offline  
Sponsored Links
post #2 of 5 (permalink) Old 02-20-2013, 11:40 PM
Planted Tank Guru
Seattle_Aquarist's Avatar
Join Date: Jun 2008
Location: Seattle, WA
Posts: 3,103
Hi syzygy9,

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

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)

Seattle_Aquarist is offline  
post #3 of 5 (permalink) Old 02-21-2013, 12:05 AM
Wannabe Guru
Zorfox's Avatar
Join Date: Jun 2012
Location: Gainesville, FL
Posts: 1,829
I believe iron becomes red when it absorbs oxygen (oxidation). Basically you have a bottle of rust lol
Zorfox is offline  
post #4 of 5 (permalink) Old 02-21-2013, 02:54 AM
Planted Member
Sharpchick's Avatar
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.
Sharpchick is offline  
post #5 of 5 (permalink) Old 02-24-2013, 09:10 AM
Algae Grower
Join Date: Jan 2013
Location: so cal
Posts: 18
Should be fine iron tends to change color over time
cpeterson9 is offline  

Quick Reply

Register Now

In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome