Yellow and Brown Spots on top leaves

Your pH on soil is 5.6? Thats too Deep . PH from the soil should be 5.5-6.5 PH from the Water should be 6.5-7.0 I think you have an lockout and yes, its Shows like cal/mag

Tbh I don’t think it’s calcium deficiency and I don’t think it’s coz your close to the end. You have been giving clamag for the 4 weeks of flower and she is only half way through flower stage. To me it looks like too much nutrients To me bro. Personally I would flush the pots and go again with half dose on chemicals. You might want to take a look at hydro guard as well. Helps with health root zone. Monitoring your ec daily will help you understand what your plants are taking and what they are wanting bro. Gl with grow 😁

@Jblaze90 Hi mate it definately does look like a calcium deficiency to me