mixed buddha autos

i currently have 16 autos on day 28 under 600hps with a 250w cfl thrown in for luck , the tallest plant is 40cm , the smallest is 20cm .iam using canna nutes and gave them small feeds of super thrive which i have now stopped . problem is on the bigger plants the new leaf growth is very spindley with yellow tips in some plants you could mistake the new leaves for pistils . i only feed every other day and water only when pots need it , i will post some pics soon but this is my first post n im finding my feet on riu . has anyone grew the mixed autos from buddha apparently there is 2xwhite dwarf , 2x red dwarf , 2x diemos , 2x syrup and the rest are mixed . none of them were labelled so a bit of a mixed bag you could say . help

If you are using soil i wouldnt feed any extra nutes for at least the first 3 weeks. Of course it depends on how rich your soil is and of course if you start to see bottom leaves yellowing go ahead and feed. If you are in soil i would hold off for a week + on the nutes just use ph correct water. Sounds like you are burning them. And you definitely dont want to run in to a lockout problem from feedin too much. Just let em ride on plain jane water for a while and your problem should go away.

Hope fully u get blue cheeeeeeese auto literally juss got don talking about it in a diff thread. Definitly on my list of autos for my next run.

im using canna pro soil with canna flores and canna boost , i gave them a little touch of super thrive when the were in veg (very short veg) . it doesnt seem like burn they just look ugly as hell . there still putting out tho !!! i took some pics tonight i just need to figure out how to upload them

Yeah I would maybe juss stick with water for a week or so see if the clear up and then maybe start the nutes when they begin to bloom or flower.