Got to say i dont think theres a more grower friendly plant in my tent just now than the Killers, there so simple they just grow with out hassle very dark green no issues with nutes or that they just take what there given and keep growing, they also dont seem to drink quite as much water as my other plants yet are growing the fastest and have the heaviest resin production so far at nearly 5 weeks.
All in all for easy growing i'd have to give the killers 10/10