[APD] Re: Barr method and Iron

[Bill Wichers <billw at waveform_net>]

> Hi,
> I have a question about the Barr  method concerning Fe and traces.
> Do I understand this  right and all of the tanks Fe comes from Flourish and
> separate Fe doesnât need  to be added?

Flourish itself doesn't contain iron, you need the separate "Flourish Iron" 
for that. If you're thinking of Flourite (the substrate material), it does 
contain iron, but you still need to dose the water column with Flourish 
Iron in most cases. Flourite is great for rooted plants, but the floating 
plants (and rooted plants to a lesser extent) need the iron in the water 
column too.

> Also what about  something like Seachem Trace should it be added or is using
> Flourish  enough?

Depends what you already have in your water. I have pretty good results 
with Flourish and Flourish Iron, along with some "raw" supplements of KNO3 
mostly. I use some K2SO4 as well, and some potassium phosphate for the 
phosphate part, but only a tiny bit.

> One more thing I  didnât understand - the following is from a recent post and
> I was hoping you  could expand on it a little.
> >>>You can have a fairly substantial amount of livestock in a well run 
> tank.
> NH4 is more useful for a single celled spore, perhaps as an activator  for
> "germination".<<<
> Thanks,Bill  VanHorn

Sounds like that discussion concerned plants starting from seed or possibly 
cultures. I wasn't following that post to know for sure.

     -Bill


*****************************
Waveform Technology
UNIX Systems Administrator

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