I am not too crazy about those tablet or fertilizer stakes. Are you in the ground or in a pot?
I think it better to be able to keep a close eye on what is happening with your plant rather than rely on a fixed fertilizer. You may want to change something down the road, as your plant tells you. I visit my plants several times a day to try to decide what they would like. A fixed tablet or stake in my mind just would not work. Read the basic grow tips forum. Cheers Dr. Bloor