Strange white tips on plant?

[B345T]

ok she beat me to it lol

A little advice please?

I am not sure what is going on here but something funky… Im using coco- Mothers Earth + perlite… PH going in is 5.7 600 HPS plus T5’s still in my 4x4 tent and this is only happening on two plants out of 9 [image] [image] My original thought was light burn, so I moved the light up a little higher, its now about 20" . but Im a noob so prob wrong… any advice would be appreciated

but there are some similarities for you both