How to grow and spot difference between blue cheese and OG kush.

I got about 5 seeds and i have 2 conflicting opinion of strains. They're either blue cheese or OG kush. Each of my friens claim one.
Havent planted them yet but will do next month.
Any opinions of how to grow them?
Or how to tell them apart?

We are limited indoors to a 1m high cardboard box and 70cm width.
We have 6500K fluorescent lights (30W) for veg and 2500K for flowering, PC fans, nutes.
We can move it out once its a foot high.

What are your opinions? feasible?

im not 100% positive, but from what ive seen in pictures blue cheese may be a 9 finger strain while og kush may be a 5 finger

Thats a pretty interesting way to know. Anyone care to confirm? If its blue cheese (most probable) please share your grow info.