Them burnt tips has been on that phat from first feeding and each not has had them idk that as far as it went tho is the tips I they got a little bit more when i stop useing veg nutrients couple weeks ago and I used beastie bloom last week but I should have use little bit of grow big with it and tiger bloom and big bloom but I didn't and it started yellowing up from lack of nitrogen so I have it 1/4 tsp of grow big with little bit of cal mag and I stop the yellowing but this plant seems to be very very sensitive to any nutrients and all the other grow journals I seen they but a couple had burnt tips even the ones I seen with high yeilds had burnt tips idk man I grew 2 other plants I had to get rid of because I move white widow and cream and cheese cbd I got them to flowering useing same nutrients and same ph but more of nutrients and had no burnt tips this diesel autoflower is way way different than them too I wish I still would have gotten to flower them other 2 they was a beast of a plant I had them top and tied down