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opinion on JBL Ferropol?

jack-rythm

Member
Joined
21 Jul 2012
Messages
1,551
Location
Ashburton, Devon
It's a trace fert, that's about it. Trace elements are trace elements at the end of the day. IMO, they are pretty much of a muchness.

If his lighting is low and he's not using c02 then there's no real need for the n and p.
 
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