Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
Probably is just about right.
If the plants are slow, or there are not a lot then they do not remove very much nitrogen in any form, so you will see a built up through the week just about the same as a non-planted tank.
You are smart not to add any NO3 fertilizer, and low doses of the other materials. I would concentrate on potassium and iron. Fish food usually has a reasonable amount of most other things.