supersoil and happy frog are 2 different, you can use your happy frog to make some super soil if you like...but HF is just a "base soil" a super soil has, tons of added guano,blood meal, bone meal, earthworm castings etc..for a full complete soil that needs very little besides water the entire grow, with just store bought soil you will need to add a good ammount of nutes in your water...