Should I Get Rid Of This Plant ??? (Pics Included)

I have 4 barneys critical kush plants under a 600w HPS, I have 4 different phenotypes and one phenotype is extremely stretched and looks like there will be no whole colas, only popcorn buds. since its stretched its taking up alot of room. should I get rid of it???

Honestly the only reason I would get rid of it is if i had room constrictions .. i would leave it unless it look diseased