ummm... this is the first time ive read this thread and just wanted to point out, the 'pedals' turning yellow and shrivelling up is not a defficiency of any kind, all plants do this, those first round leaves (cotyledons) actually store all the nutes needed to take it through the seedling stage, and will die at adolescence, there is nothing to worry about, oh yeh, nice plants man lowryders are cool plants...