Metricide

Shiggy · 02-14-2013, 02:52 PM

Does anyone know if Metricide 14 day work after the expiration date?

In.a.Box · 02-14-2013, 04:06 PM

I believe it will work. The expiration date is only for if u mix the small package with the 14.

Darkblade48 · 02-14-2013, 07:57 PM

Quote:

Originally Posted by In.a.Box

I believe it will work. The expiration date is only for if u mix the small package with the 14.

That being said, do not mix the small package with the glutaraldehyde

DarkCobra · 02-15-2013, 01:59 AM

There is ALSO an expiration date printed on the gallon bottle. I believe this is what Shiggy is inquiring about, rather than use of the activator.

It's funny this question comes up now, because I have a bottle of Metricide 14 purchased 2.5 years ago, which expired April 2012. And just two days ago I checked it with a Hach GT-1 Glutaraldehyde Test Kit. It's only lost about 15% of its potency. It still grows plants, and kills algae when overdosed, just as expected.

So I'd say expired Metricide is OK.

02-14-2013, 02:52 PM	#1
Shiggy Algae Grower (View User Tanks) PTrader: (8/100%) Join Date: Aug 2012 Location: Wisconsin Posts: 130	Metricide Does anyone know if Metricide 14 day work after the expiration date? __________________ http://www.plantedtank.net/forums/yo...o=view&id=4085 http://www.youtube.com/watch?v=lynBZmh2GiQ

02-15-2013, 01:59 AM	#4
DarkCobra Planted Tank Guru (View User Tanks) PTrader: (5/100%) Join Date: Jun 2004 Location: Baton Rouge, LA Posts: 2,959	There is ALSO an expiration date printed on the gallon bottle. I believe this is what Shiggy is inquiring about, rather than use of the activator. It's funny this question comes up now, because I have a bottle of Metricide 14 purchased 2.5 years ago, which expired April 2012. And just two days ago I checked it with a Hach GT-1 Glutaraldehyde Test Kit. It's only lost about 15% of its potency. It still grows plants, and kills algae when overdosed, just as expected. So I'd say expired Metricide is OK. __________________ Life happens. On semi-hiatus, checking in infrequently.

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02-14-2013, 04:06 PM	#2
In.a.Box Wannabe Guru (View User Tanks) PTrader: (9/100%) Join Date: Dec 2011 Location: New England Posts: 1,119	I believe it will work. The expiration date is only for if u mix the small package with the 14.