Dosing pump

[donkey77]

Good day
Got a 3 pump dosing unit going to set up om my 90
Using Red Sea reef foundation abc
I've tested all three and they are just under, so my tank is using some whatt, what should I set my dosing pump for
I want to start off low so would like 5ml a day dose over 24 h periods to much
It's a kamoer dosing unit