You want to use just water, soil and light? you will end up with a deficient plant (unless its outside and can find its own nutrients)and it will die an untimely death of nute def, if u dont want to buy nutrients then a good source of nitrogen for veg is ur own urine that works good. instead, throw a few worms in ya soil for worm castings. have u grown b4 or done any thing with mj as i saw u posted for someone with seeds in water soaking to wait until the leaves came out, u must have not seen it was in water and split already which meant he should plant straight away. dont listen to what the so called doctors of growing say about u on here, just read up more and learn as much as u can b4 u advise people ok m8. anyway u wanna see my plants in my journal click my animated pic at the bottom of my post also click the star at the bottom of the post lol.