Need advice please

[bipidibopidi]

I have fan leaves that are turning color and spotting (see photos) and I believe it to be a calcium deficiency but got cal-mag and have been giving half doses and haven't noticed much of a change. Most of the fan leaves got so bad that we had to trim them off. Just trying to figure out what this is for sure so I can try and correct it, if it isn't already too late.

Any help is appreciated, thanks in advance
GOAL:

 

[GreenStreet]

I have had this issue before and thought it was because of the nutes i was using. i will take a seat and see what some more experienced growers have to say!

 

[bipidibopidi]

Just some more information: using 2.5g buckets (planning to use larger pots in the future), fox farm soil and nutes and now using the cal-mag at half dose along with other nutes...the symptoms shown above only showed up on 4 of 8 plants, 3 of which got really bad and we can see the difference in the flowers (the flowers are a fair amount smaller even though they are the same strain and age) compared to the other 2 that didn't seem to be affected by this problem and look perfectly healthy. If anyone would like to see the leaves on the other plants just let me know. And thanks again for taking the time to look at this.

 

[Richard Richardson]

Hi bipidibopidi Welcome to

Have you tested the pH of your water?

If the pH is not right, Calcium can get locked out, so cal-mag will not help.

 

[bipidibopidi]

*Slightly embarrassed* I actually just ordered a ph tester after trying to diagnose the problem on my own and realizing that I really needed one. The water by itself is good as far as the ph goes (we had some aquarium test strips)...but I don't know how much the nutes change that. Still learning but do have some very beautiful plants that turned out nice so that's a plus Thank you for your reply.