Soda ASH IFC calculator help ?

[eminor]

Hi, it's hard to find a sodium carbonate calculator when you don't know much about chemistry, so i tried with the wonderful IFC calculator, i have an auto doser that will deliver 10ml/day ~ 0.015 dKH per day, that tank is young and consumption is slow right now


If i did thing right (pictures)

I need to add 4.45g of sodium carbonate in my 400ml container, and 10ml of that solution in the 80 liters aquarium deliver 0.015 dKH, is that right ? thx

 

[hypnogogia]

You seem to have set your dKH target to 0.1, not 0.015.

 

[eminor]

You seem to have set your dKH target to 0.1, not 0.015.

Yeah, the weekly target is 0.1, divided by 7

edit: i'm kind of confused, my weekly target is 0.1 but one dose of 10ml will provide it when i want 10ml to provide ~0.015