Plant differentiation

[tcl]

I mixed up amnesia haze auto and northern lights auto.
At 8 weeks they look very similar.
Any pointers on how to tell the 2 strains apart?

[BobbyDigital]

Welcome @tcl! Northern lights is almost a pure indica plant. Amnesia is very sativa heavy. Should be pretty easy to determine the difference in the two. An indica will have fat leaves and tend to be shorter bushier plants. Sativas have skinnier leaves and like to grow tall.

[Woodrow]

But with auto strains it is very hard to tell
Here is a pic of a 70% indica 30% sativa.