any ideas on the strain?

So I've done this one 2 or 3 times now, and I've looked lots of places because I'd like to know the strain. Does anyone have any ideas? The smell is definately 100% grapefruit, and I'd say is a sativa heavy hybrid. what do you guys think? These pics are from today which is day 1 of week 8. thanks guys!

Impossible to know really without growing it an many others that you do know. It could be a skunk cross if I had to guess and would just call it grapefruit skunk or grapefruit kush whatever. If its bag seed it's not going to grow the exact same as anything found online anyways so just love your plant for what it is

whenever I hear grapefruit... I think of C99

C99 is one of the ones I thought to. It does have some similarities. it's not a bag seed it's a clone but the guy who got it for me has no idea, and his guy can't remember what he gave him. Oh well I know it doesn't matter, it only goes into my jars then my lungs but it'd be nice to know for sure what it was.