Depends but I would think it would take at least some out. I would get in the habit of dosing right after a water change. At least that is how I used to do it. That way the nutrients are in there the maximum amount of time before your next water change. The root tabs you shouldn't have to add for quite a while. As for the carbon supplements I'm not entirely sure if they need to be dose more or not I have yet to fool with them. I mostly dosed Iron.
Increasing your biodiversity increases your stability.
You know what this tank needs? ........................ Crypts.