im at day 46 of a g/h cheese crop in b bizz almix in 5l pots wit added perlite.and allmost all r showing sum brown hairs 10% .ive gave them 2 lots of pk13/14 on top of the bloom. a few leafs r dying off now.so how shall i flush?just feed for 7 to 12 days just water, or a light feed of grow like ot1,s spec.then just plain water for 7 days say? i have been feeding to ot1,s feed but with big bud in week3 of bud and the pk13/14. nice1 420,rs.