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3 year old ferts still useable?

Aqua Hero

Member
Joined
8 May 2015
Messages
272
So I decided to come back after about 3 years, I looked through my old equipment and saw that I still have my old Marco and micro mix in a bottle. Can I still use them after three years? If I recall I pre mixed it with ei ferts and used pure ro water
 
I think it should be ok, provided it was stored in an opaque bottle/in the dark and at normal temperature


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I recently found a couple of bottles I’d mixed up some years ago. One bottle looked absolutely fine and clear so I kept it, the other one was a different recipe and had separated with a brown sludge in the bottom so I got rid of that one.
 
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