Nute Burn? Potassium def?

91qboy

New Member
Hey guys quick problem......

Im at week 8 from seed and everything seemed to be going smoothly until i noticed some tips changing. Im in DWC with 2 sativa dom hybrids and 2 ind dom hybrids. Temps in tent range from 71d to 80d. Water temps range from 66d to 70d. PH stays between 5.8 and 6.0 as i check 2x per day. Using reg tap water that comes out at 6.4 PH. Was going to flip tomorrow but need to see if i need to change anything.... using Advanced nutes grow now at 900ppm. Has been 900 ppm for the last 2 weeks with no problems until today, seems like its just the very end of the tips...... any help????
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