Just started seeing brownish parts on the tips of some of my leafs does anyone know what it is?

@Selma Shop Thanks for the additional info. Is that the only leaf impacted? Do you have a fan or heater by that leaf? That damage looks like damage that occurs from a fan or heater too close.

Honestly no the fan and heater arent directed at the plant or anything but it’s really only affecting those couple leaves i think it could be my temps cause every now and again it gets really hot in there cause i have to turn it on and off manually so i’ll probably get a new one soon

@Selma Shop Hmm ok. I wouldn't worry much about it unless it's getting worse tbh.

I ph my water around 6.5 and give nutrients every other water. I’m using FF nutrients mostly big bloom and grow big I’m about to start giving tiger bloom. I don’t have a ppm meter yet.