Does GFO have an expiry date?

Hustler · #1 10-22-2011, 04:55 AM

LOL rust has a shelf life....ask any ford owner LOL

Wayne · #2 10-22-2011, 04:57 AM

Quote:

Originally Posted by Hustler

LOL rust has a shelf life....ask any ford owner LOL

LMAO

Zoaelite · #3 10-22-2011, 06:45 AM

Quote:

Originally Posted by Hustler

LOL rust has a shelf life....ask any ford owner LOL

Hhahaaa!!! My guess would be no, it's moist to start though so maybe make sure to keep the lid on?

hfp75 · #4 12-25-2013, 03:46 AM

I'll resurrect this thread. I think the question was not about time in the tank/reactor, but how long can you keep it in the bag (unused) before its potential effectiveness starts to drop?

The Grizz · #5 12-25-2013, 05:20 AM

As long as it stays dry and sealed there should not be an expiry date. IMO it needs to have water cycled through it to activate just like carbon does.

zhasan · #6 12-25-2013, 11:22 PM

I just used some Barrier Reef GFO media in my tank last month. Its at least 3 years old. It worked well but my phosphates levels creeped back up in about a month. I think the increase is due to the high volume of phosphates in my tank and use of minimal amount of media in a tank with very high levels of phosphates.

So, IMO, it does not have a shelf life as long as it stays dry.