Pk13/14

I use PK 13/14 and I can say it will make the buds fatter , but you'll have to time it right . I've done in 2 ways : 1: using 0.5ml/l PK 13/14 from week 2(15-20 days in flowering) and increasing dosage by 0.5ml per week , stopped 2 weeks before harvest . Did encounter some issues , but I don't think it was from the PK , had overwatering issues and that could've been the cause . but buds did got fatter 2: using as advertised - 1.5ml in week 3-4 of flowering . had same results more or less , still faced some issues on leaves , but again due to PH fluctuations or overwatering . but buds did got nice and fat . It's up to you mainly , see how it works for you . My suggestion for now - start using 0.5ml PK 13/14 every feed . but stop 2 weeks before harvest (or when flushing ) . If you have 2 plants , you could do both ways , on 2nd plant just wait 1 more week and give her 1.5ml/l and see how it reacts .