Fauna Marin Elementals K
potassium
Manufacturer data
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What one dose does
PARAMETER
1 ml / 100 L
Potassium
+1 ppm
To raise potassium by 20 ppm in 100 L: 20 ml.
Maker’s daily maximum: 50 ml per 100 L (50 ml for 100 L).
How it’s used
Correct K toward 395-420 mg/L (never below 370). 10 ml per 100 L per +10 mg/L; max +50 mg/L (50 ml/100 L) per day. Often needed on Zeo-Light systems; Balling Light normally needs none.
Sources
Zeo-Light HTU: keep K 390-420 mg/L and ~20 mg/L below Ca; elsewhere target 440 mg/L in the short version.
faunamarincorals.de/en/Elementals-K-1000ml/14110V
faunamarin.de/wp-content/uploads/2021/04/FM_HTU_ELEMENTALS_EN_NEU_291121.pdf
lab.faunamarin.de/en/calc-elementals-once
faunamarin.de/wp-content/uploads/2020/10/FM_HTU_Zeo_Light_System_EN.pdf