Hydro grows don't use potting soil. They are soiless grows. You just use something to hold the plant, like hydroton, rockwool, rapid rooter. When growing in potting soil let the soil dry out some before you water again. Certainly don't water every day. You might not have to fertilize at all for the first week or so. You might want to ask the maker of the soil if there is fertilizer already in the soil and about how long it will be good for before you have to fertilize.