Unknown - deficiency or burn I cant tell? advice appreciated

Please check the pic and let me know what you think, not sure if its burn or a deficiency so not sure what to do

Animal Cookies x Super Skunk in 22 ltr pots soil

20 days into 12/12, feeding with

Buddahs tree PK - half recommended strength
Old Timers bloom - half recommended strength
Shogun Cal Mag - full strength

Plain water every 4th water

to much cal/mag

chuck estevez said:

to much cal/mag

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Really? Are those leaves a typical symptom of too much Cal Mag or do you say that because im feeding full strength and it looks like nute burn?

willc said:

Really? Are those leaves a typical symptom of too much Cal Mag or do you say that because im feeding full strength and it looks like nute burn?

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the latter

chuck estevez said:

the latter

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Ok that makes sense, ill give em a good flushing and use much less frequently, thankyou!