i was using canna coco a+b throughout the veg stage, then moved to pk13/14 for flowering. however i was told that i had been using it too much so i stopped and just gave them water, once every 2 days until water came out the bottom. the pk13/14 says it doesnt have any nitrogen in it. is has an npk rating of 0-13-14. my veg nutes contains an npk rating of 5-4-3, should i be using this for now?? thanks lot