scousa...what do u mean by the top cover of the hydro??
I just preferred putting theclay pebbles in as it allows more fresh air circulation around the roots so that they're not always in moisture....plus it gives the roots something to hold on to.

thanks
MNSN
mrnotsonice Reviewed by mrnotsonice on . true? is this right??(seeds direct.com) -------------------------------------------------------------------------------- hi ive been growing white widow for 2 weeks and they are about 8 inches high and just as bushy,i was reading on seeds direct about white widow,is this right? "Vegetative Time: At least 2 to 4 weeks if on Bio. On Hydro it is only recommended to grow it for 2 weeks. Flowering Time: On both mediums it is suggested to flower (12 hour light) the White Widow for 8 weeks, Rating: 5