hi all my name is steve & ive just started a hydro & im a bit worried my set up is 3 x 15 ltrs & my seedlings hav been in 16 days i put seeds straight in too soaked r/w plugs they came up after 4 days & i seem to have problems already, 2 plants are looking ok but 1 has developed yellowing & curling leaf. I thought i might have not put enough neuts in PH is 6.1 and i used 75ml of A+B vega mix between 3 buckets if anybody has advice it would be appreciated.