Phyto Feast question

[RBU1]

How long does this stuff last? and how can you tell if it is not safe to add to the tank? I thought it should have a date on the bottle. When I purchased it from my LFS it had no date. I was thinking after the fact maybe they removed the date because they had it for a while. Thanks for any help BILL

 

[CB1]

I don't know if the same applies to that product. Bui the stuff I use, (Liquid Life) does not have an exp. date either. It has a 6 month shelf life once opened.

 

[miracles38]

When the smell changes it is expired. It will smell bad.

 

[whiteshark]

It should have a date on it... I would ask your LFS when they got it in.