Manganese overdose

[DEGREGORIIS]

I think I dosed about 200 ml of Manganese in my 2500 liter system since I heard the GHL doser dosing without a schedule in place !!! Would this be an overdose ? I cannot do a waterchange as I have not enough RO water or salt available and stores are all closed now. Fish seem ok. Corals are closed ( night time over here). It must have happened between 6pm and 2 am.
The GHL goes away for sure now .
How fast will I see impact of this 200 ml dosing of manganese ?

 

[Dylan McKenzie Holloway]

Do you know what your level is now, and is it manganese or magnesium? Also what product did you dose and why do you "think" it was 200?