"Bob" wrote in message
...
"xtr396472" wrote in message
...
I have started to use Flourish Excel to feed my plants instead of DIY
yeast
CO2
The only problem is my tap water KH is 3 and pH at least 7.6
What is more important to maintain the pH or the KH. I would like to get
the
pH down to around 7 with out using CO2 just for breeding purposes.
Any thought apprec.
Thanks



pre-filtering thru peat will work for sure.
It is far easier and cheaper then co2, the only downside, is it is a
little
messier.

Indeed it will (I do it).

Its important for the OP to understand what goes on there though....it
lowers the Ph because it eats up the Kh. There's an added twist to it in
that when you prefilter through peat you also get a LOT of CO2 in the water
initially. This "out-gasses" in a few hours but the key to doing this and
knowing where you are is therefore not to measure Ph but to track Kh as you
are filtering the water. This is because the Ph will be artificially low on
account of the excess CO2 that gets into the water during the filtering
process. I've meaured it (by measuring Ph and Kh & reading off the relevant
tables) at over 120ppm straight out the peat filter.

I.