Hi guys

I had 4 strains growing with Bio Bizz Light mix ,All germed perfect as always until day 10 , when all just stop growing and went yellow and died !! I have grown with Bio Bizz all mix and coco mix many times and never a problem before !! All strains were NL & PP & WW & WR .Is there to much nutrients in this that killed them ? I watered them as i always have ...

Has anyone used Bio Bizz Light mix before and had any problems with it ?? Any help on this is much appriacated ...

Cheers RobbyyT