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Potasium Carbonate
I have a 240l tank with 6 medium discus 6 botias 18 tetras and a pl*co.
Fairly heavily planted tank with slow and fast growing species at 28C. I
have and UGF with a powerhead which I bubble to remove the grease layer from
the food. I use peat to lower the ph to 6.8. My water conditions are:
Natural pH 7.2
No nitrite or nitrate.
1-2dH.
Supposedly very low Fe,K, Mg and S.
In an attempt to lower nitrate and let my plants grow I am adding Fe, MgSO4
and Potassium Carbonate instead of K2SO4 with the following logic which I
hope is correct.
1. My natural CO2 level should be 2-3.5. By carbonate hardening this
should shove up the CO2 level.
2. I need to drop the pH to make the potassium carbonate soluable
(besides being desirable for the discus)
3. Postasium Carbonate needs to be dosed higher than K2SO4.
Mark Hack