What are the different types of marijuana are whats the difference?
It sounds like you’re mixing terms. Blueberry is a strain of Cannabis while dank and cronic denote strong weed. If you grow your Blueberry poorly it could end up being schwag (bad) instead of the dank (good). I’m not sure if “Stress” is a strain, I didn’t see it in a quick strain guide search. If you would like to learn what many of the different strains are then I would suggest that you get the book The Big Book of Buds. You can find it on Amazon and it has hundreds of strains with pictures and brief explanations of their affects on you and even grow info.