The only thing in your PMDD is the trace mix?
You're not dosing Potassium at all?

You should invest in a water hardness kit to determine GH and KH... They're
very cheap.
You may need to dose Mg and Ca as well.


Isaac


"PR" wrote in message
om...
- I dose PMDD (only the chelate trace mix) weekly to maintain Fe level
at ~ 0.1 ppm
Poe