Funky Tips and Yellowing Old Leaves

Hey guys. Day 30-something and the tips of my new leaves have started to turn brown and I'm not sure whats up. Also My old leaves are like hella yellow and dying. Could the yellowing and dying be due to lack of nutes? I tried to wait as long as I could to water because I'm getting nutes shipped here soon but they were droopy and needed water so I went ahead and watered today and kept the pH at like 6.5pH or 6.6pH. It's under like 19/5 lighting under 400W HPS. good air circulation and idk bout humidity. No nutes yet but like I said, they'll be here soon I hope.

Yep, it's nutes. Do you have molasses in the pantry? 1/4 tsp per L. Don't think you can do this over and over and over. You'll get pythium. This is just to buy the postal service a little more time. Make sure pH is appropriate for medium. Soiless uses a hydroponic pH, and most of Fox Farm's mixes also use a hydroponic pH, same with VermiSoil.

I just watered today and I also got the nutes now. Should I go ahead and rewater with the nutes or let it kinda be all sickly and keep letting the old leaves be f*cked until the next watering?

bumpity bump bump

it looks like there being overwatered how wet is your soil ???

No.... they're fine now. I bumped cuz I want to know if I should water early or right now or just wait until the next watering with the nutes I just got.

well I guess that means I'll wait until next watering