Hey G ... I want this plant to stay under 2 feet tall so I'm only using 1/2 a tab. I broke the 1/2 tab into 2 pieces and pressed them 2-3 inches deep ...regardless of the amount of tab, in the future, I think I'll be pressing them into the soil after the plant has sprouted rather than placing under the seed when preparing the pot. I think having a dissolving tab under the seed creates a zone that is a little too fertile for roots to thrive there, once the roots have started to spread out if they get nutes from 2-3 spots in the pot that are off to the side of the tap root I think it will allow the plant to grow faster ... 3 days was too early to apply the tab. I think 7 to 10 would have made more sense but acting smart is not my strength ... another reason for 1/2 tab is my friend that I'll be leaving this plant with will be anxious to start feeding it w/ BioBizz so there is no need for the tab to still be dissolving after about 3 more weeks ...