im sorry to see you give up on DWC because its just not that complicated and id encourage anyone to try it!  i thought you were doing great! (look at cakefan, this is like his 3rd DWC grow)

if you have a problem, a good 75% of the time, it involves pH. once you figure it out, its just water/nutrients. im nothing special. just a glorified Culligan man. i keep things very simple. this run i havent even used Hydrogaurd (i probably should buy a bottle soon)

well you have the soil now but i think changing mediums mid-grow is going to be a big setback..