Salifert Magnesium test expiration date

ctniners · 04/05/2013, 08:56 AM

I have a test that is more than half full but the box is showing an expiration date of 5/2013...what happens if i keep using it after May?.I assume the test results may become unreliable?..what expires actually?...there are 3 different solutions being added...i just hate throwing it away when there so much left.

Anyone ever used any of theses tests kits past the expiration date?

ReachTheSky · 04/05/2013, 09:15 AM

I know some people who used them past the expiration date but I wouldn't recommend it at all.

Habib · 04/05/2013, 10:39 AM

If the colorchange is sharp then just use it.

However, just be sure you had the caps tightened properly after each use, in particular of the Mg-3.
Otherwise it could, because of evaporation, give a lower result than actual.

bnumair · 04/05/2013, 07:09 PM

I keep my kits for 1 yr of purchase or expiry date on product which ever comes first.

Ron Reefman · 04/06/2013, 04:22 AM

On April 30th at midnight all the chemicals in the Salifert box will just become inert and it won't work any more!

I use Salifert and my last mag test kit was giving me readings of 1300-1450 all the time and it wasn't expired. My new kit gives me readings of 1700-1800 and I haven't dosed mag into either of my 2 systems. It makes me leery about all test kits we use.

ctniners · 04/06/2013, 06:18 AM

Thanks...I guess I will continue using it until i see discrepancy....my tank is always between the 1400 to 1500 range so I guess I will know...at least is not as crucial as alk for example

04/05/2013, 08:56 AM	#1
ctniners Registered Member Join Date: Nov 2008 Location: CT Posts: 938	Salifert Magnesium test expiration date I have a test that is more than half full but the box is showing an expiration date of 5/2013...what happens if i keep using it after May?.I assume the test results may become unreliable?..what expires actually?...there are 3 different solutions being added...i just hate throwing it away when there so much left. Anyone ever used any of theses tests kits past the expiration date?

04/05/2013, 09:15 AM	#2
ReachTheSky Registered Member Join Date: Aug 2011 Location: Burbank, CA Posts: 1,114	I know some people who used them past the expiration date but I wouldn't recommend it at all. __________________ Van Current tank: 7.5g Nano-Reef \| Modified AquaClear50 \| RapidLED Par38 bulb \| 2x Koralia 240gph Last edited by ReachTheSky; 04/05/2013 at 09:23 AM.

04/05/2013, 10:39 AM	#3
Habib CEO of Salifert Join Date: Apr 2002 Location: Holland (Europe) Posts: 19,447	If the colorchange is sharp then just use it. However, just be sure you had the caps tightened properly after each use, in particular of the Mg-3. Otherwise it could, because of evaporation, give a lower result than actual. __________________ Proud owner of the very rare YET (Yellow Elephantis Tang) from the Lord Bibah Islands. "Ice cream, steaks, and Bailey's Irish Cream all help promote healthy immune systems. Why else would I love to naturally eat them packed with fat as they are?" - R. Holmes-Farley, 2012

04/05/2013, 07:09 PM	#4
bnumair Dr. Reef at ur service Join Date: May 2009 Location: Tulsa, Ok, USA Posts: 7,751 Blog Entries: 15	I keep my kits for 1 yr of purchase or expiry date on product which ever comes first. __________________ Water Quality: NO3 0,Phos 0,Cal 440,Alk 7.5,Mag 1300 "Reef Fast, You Crash, Reef Slow, You Pass" Mike's Reef 3:16 Current Tank Info: 350g DT,95g sump, 50g Frag tank, 4800gph return 4x Sea swirls. 6x AI Vega Color. 200# Pukani rock, dual recirculating skimmer, Biopellet, GFO Carbon rx's, Cal rx. Closed loop. 1.5hp chiller, genesis renew. Apex & RKE

04/06/2013, 04:22 AM	#5
Ron Reefman Registered Member Join Date: Jul 2009 Location: Cape Coral, FL Posts: 10,431	On April 30th at midnight all the chemicals in the Salifert box will just become inert and it won't work any more! I use Salifert and my last mag test kit was giving me readings of 1300-1450 all the time and it wasn't expired. My new kit gives me readings of 1700-1800 and I haven't dosed mag into either of my 2 systems. It makes me leery about all test kits we use. __________________ The good thing about science is that it's true whether or not you believe in it. (Neil deGrasse Tyson) Visit my build thread http://www.reefcentral.com/forums/showthread.php?t=2593017

04/06/2013, 06:18 AM	#6
ctniners Registered Member Join Date: Nov 2008 Location: CT Posts: 938	Thanks...I guess I will continue using it until i see discrepancy....my tank is always between the 1400 to 1500 range so I guess I will know...at least is not as crucial as alk for example