[plantbrain]

+1 for the calculator.

If you have algae or other issues, I suggest doing daily larger water changes or maybe every other day. But after 1-2 weeks, this is plenty.

I still dose the same 2-3x week.

Same amount etc, but some modify it to suit the daily water changes etc.
I do not think it matters over short time frames of 2-3 weeks though.