Component A B C, have all elements?

[coburn13]

Component A B C, have all elements? Potassium?
Should I dose potassium separately?

 

[Aquaforest]

Component A B C, have all elements? Potassium?
Should I dose potassium separately?

Hello,
Component ABC does not contain potassium. We recommend to buy Kalium.
Anyway, overdose potassium is very dangerous for corals that's why We recommend to know level of this parameter before you decided to dose Potassium.