Hey, I've currently got 2 photoperiod plants that seem really healthy but my god they are flowering slowly. They are in Coco/perlite under 2 3500k cob lights. I'm using the canna range Inc calmag and pretty much always have, pH at 6. Ppms going in are lower than what's coming out but I'm only feeding 700-800 ppm (water 280ppm out of tap) and they are 4-5 weeks in flower and look really good (in my eyes). They may just need more time I don't know. If anyone has any suggestions or questions to help it would be much appreciated.