me personally looks like they were to wet for a while.. if your using
canna coco a&b i would cancel out the canna start its not really needed in coco id go straight into canna a&b at about 5 ml a gallon and work up from there.. they were wet in the beginning and now your seeing signs after the fact.. they are hungry.. id also with the small pots lift them before you water.. with coco sometimes it will look dry but be soaking wet still... it doesnt need water every day unless you are giving it just what it needs daily or you have a root structure that is allowing it to drink daily no matter how much water you put in it.. with
canna coco base you do not need to add cal/mag or anything it has it in it 5% cal and 1 % mag.. wich is plenty i have grown with coco and the canna line a line time just recently switched out to try something new for a little bit but will prob go back when im done playing.... i havnt used a bottle
calimagic in years while using
canna coco line its not needed
schedule should go something like this for seedlings/clones onto flower
clone/seedlings 5 ml a gallon a&b 15 ml of rhizo
veg/mid veg 5 ml rhizo, 7/10 ml a gallon a&b manipulation if needed some might demand a little more calcium or magnesium so bump the base up maybe 1-2 ml at a time until defeciency is gone
flower/late flower 10/12 ml a gallon some could go to 14 ml if you are not seeing any kind of nitrogen curl, they demmand alot of nitrogen still in that first 2 weeks even on up to 3-4 weeks with some longer running strains,
if your using cannazym, boost, pk 13/14
zym i use 9 ml through veg up to 12 ml in the end of flower
boost i dont add until i actually see the bud sites at 9-12 ml a gallon depending on what week it is
pk i add 6ml gallon at week 4-6 depending on the strain it only gets it for 7 days and it is added when the buds itself start the first swell when the puff balls start stacking
i know you didnt ask for all that but canna does not need any extra cal mag products if you use coco ab that made for coco its designed to work great with it