nutrient problems?

Ok I have to auto ak 49 growing in a hydo setup under two led lights. Temps are good, ph is good, water temps high but I use resclear and it works great. Im thinking im having nutrient problems, deficiency problems actually. Heres a picture of one of them they both look the same. Im using gh A&B with some calmag in distilled water. My ppms are at 170ish. Ive never grown this strain before and its an auto so been worried about giving to much and maybe its not getting enough. Idk.
 

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