Masterkush supposed to droop? little help please *Pics*

Cant seem to figure out why my masterkush plant has been so droopy and taco like. I water almost daily but not much and always wait until soil is very dry. Its in a mix of MG potting soil 1/2, organic seed starter mix (compost, peat moss, perlite) 1/2, then just extra perlite I had was thrown in to make it a bit more airy, and dilute the MG as much as possible, under a 400watt 18/6 mh bulb about 1 1/2 feet above. I attached two pictures from 2 days ago, I cant take any pictures from today but the lower leaves you can see almost in the dirt that looks like a bit is taken out (just the angle) started to get little yellow burn marks. The yellowing just started happening in the last 2 days but the leaves have been droopy for a week or so. The plant will be 3 weeks old on Thursday 27.

Water more often? lettin the soil dry out to much between waterings is as bad as overwatering

Give it more water less often you should not be watering every day. Water until you get runoff and then let the soil get dry befor you water again witch could be every 4-5 days between waterings

You need more water and buffer your ph better. You are getting severe nutrient deficiencies

More water less frequently got it thank you. It really bothers me I have no idea what my ph is at. I want to get a digital reader but am told to stay clear away from cheap ones and I dont want to spend over 100 bucks on something. Iv gone to walmart and a few other stores but besides pool testing kits I cant find much.