Odd shape of leafs

Hi guys i am new here, i noticed some of the plants don't have nice shape of leafs like otheres. Color is ok. I am going completely organic with biotabs pack so i am only using tap water. One leaf has small yellow edge. Others are ok. I am using 2x 600hps currently running on 400w. Temps are 25-26 degrees Celsius lights on humidity 35-41% 18-20 degrees Celsius lights off humidity 45-60.
 

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