yes confused
The fertilator will tell you how much of either a stock solution or dry dosing you need to reach a certain concentration of that fert in your tank.
For a single dose in one go.
Of course you can decide to add the same amount over time but most people say for example "I want to add 0.1mg/l of Fe each time I dose"..
Why would you want to spread it over time? I think this would confuse things... :???: