Bob - I'm not going to comment on the amount to dose. But just ask that you consider the two options...
One is "EI" variety - that is to take your normal weekly dose (added up) and spread it across each day. As with EI, that means you are accepting a wide swing of values between the day before water change, and the day after.
The other option is what I think of "level dosing". That's where you have a target level that you are trying to fix. So that means a fixed dose each day, EXCEPT you apply a "gap" dose after water change to bring the tank up to the level it was before the water change - instead of waiting the entire week to rise to that level.
In your case though, with your daily partial water changes - I'd suggest that the latter is not appropriate, and that you should use the former.
Steve - 33g reef and a 180g planted in need of a re-scape.