Whats that smell??

I've had my Zkittlez growing for about 4 weeks now, given it Biobizz Grow for the last 2. It's the first time I grow this strain.
But it's also the first time I dont get the familiar weed smell, but instead I get a rather citrusy/grape fruit sort of smell off it.
Is it the strain? It looks healthy, no deficiencies of any kind. Just super curious there about the smell

That’s the smell of the strain. Look at the genetic lineage of zkittlez and you’ll get it.

Aah yes, after researching this, its definitely its genes that makes this smell. Its so refreshing. Thanks