Strongest Strains you can find at 420seeds they claim to have a strain Jedi with 41%THC somethign calleld euforia express with 37%thc and its $1500.00 for 10 seeds LOL Labyrinth Bud39%thc green crack go check it out 420seeds and click on worlds strongest and lok at oracle bud 45% thc or Pickle Bud it just says THC level %: EXTREMELY HIGHand its $3000.00 for 10 if this is true someone get some and breed them and share 
