Help me please first grow

hi doing my first hydro grow wiv clay pebbles had plants three weeks just fed them water so far every day 1/4 of a pint a day lights r 18hrs on 6 hrs off bin like that for three weeks waitin on ppl to give me nutrients to feed these suckers but still no food now need to now wot nutrients to use fed up of waitin any one recommend any:thumbsup:

any reli just dont overdo it! theres a section called indoor growing it has advice about nutrients i suggest u look there m8. gd luck with ur grow