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Re: steve's substrate
> Oh yeah, Steve, how long does your substrate last? 2, 3
> years? think I can stretch that if I start adding pmdd
> when the plants start to show signs of deficiency?
I suspect (but have no proof yet) that these kind of substrates will
provide iron for many years based upon what Paul K has observed.
Periodically I add some macro nutrients to the substrate with clay
A more interesting question is will there be any accumulation of
inhibitory compounds in the substrate after several months or years.
Neil Frank has been keeping peat tanks for many years. Neil, how much
peat do you use? How is it employed? what kind of peat do you use?
Is there anyone else on the APD with peat experiences to relate (good or