Help needed

think i would say Ca this time, but you'll want to check the labels of the product you put into your medium. make sure it doesn't provide plenty, because if it does, it is soemthing else... other things can cause Ca deficiency, like a pH being a bit too acidic or too much of something else that is dissovled that creates a bottleneck etc etc.. p and k tox can cause that... i don't see sings of that though. make sure you don't bomb it with magnesium, though.. double check labels for it. cal-mag is often used to rais calcium, but you need to consider the magnesium component too. if you know this type fo stuff, and it's easy to deduce what's wrong later. it's really easy math, make a spreadsheet with formulas.. you learn it once and forget lol.. google "nutrient ppm rollitup" should be first link. they guy goes how to convert.

Also any opinions on the health of my flower would be much wanted as this is my first flower i have nothing to compare to, couple other questions if anyone could answer for me, firstly would be I'm using coco canna a and b which the bottle says I can use all the way threw, is this ok as so far this is the only nutes my flower has been given, my second question would be back to the leafs, it's only on 2 sets of leafs wpuld u leave them alone or remove them many thanks for all your help