Helpp!!

HI first time grow an i have encountered problems can some the experts from here help me please, firstly before diagnosis i will explain what ive done to date well i bought some really good soil supposed to give all nutrients needed for first 3 weeks its just about 3 weeks now 9/1/12 about a week ago i fed them baby bio i dont think they liked it from what ive read on the net the excessive fertilzer in the soil is coming through the leafs and burning my babys well with that i flushed them immidately with pure water cant really say theyve got worse because they havent they actually look really healthy few lil probs here ann there each plant is diffrent 1 plants leaf has developed weird has half a leaf another plant has orange marks an light green marks along ridges of leafs, another has purple stems a couple of them are developing purple stems saying that the strain is cataract kush im not fammiliar with the growing an dont know if thats normal help!!!!!!!!!! just to be clear they look like they growing not dying loooool