yellowing and brown leafe edges ontop of heat stress lucky me

[MynameNoizy]

ndoor tent vipar spectra 600 par led
water whenever soil is dry and pots are light
Fox farms ocean floor
give them liquid seaweed and urb
crappy $10 ph pen everything ph to 6.8
white glue, banana glue, expert seeds
about 3 weeks from sprout
Went outa town for about a week had mom's taking care of the girls came back to this. Not her fault just havnt been able to react until now.
The WG plants one just started with brown edges then it started spreading.
the BG heat stressed all to hell and the WG look better but some kinda nutrient problem. The BG may not be worth saving you tell me they look bad. temp hovers about 87 all day but can get up to 94 but added a wall unit so it stays at about 87 now , didnt think that was hot enough to cause this kinda stress. light is 32" away. I gave them compost Tea like 3 days ago hoping it would correct but its just getting worse. So gave them straight tap water yesterday.
All pictures are of the WG except the pic of the 4 the 2 in the front are the BG they not looking good at all. Sad the Strain I was most interested in

 

[MynameNoizy]

Any guesses to the yellowing would be appreciated greatly.

 

[9fingerleafs]

maybe they got too hot and dry, couldnt really tell you what is the real problem, cause or solution but hopefully someone else has better insight. they definitely look like they need more water than you giving them

 

[MynameNoizy]

the soil moist underneath just the tippy top dry

 

[9fingerleafs]

in that case what they need is more drainage and air in the roots, those buckets dont let air go in

 

[peenster]

definitely nute burn, should flush, then repot to sumthun bigger with good drainage, & try & get a better handle on yer heat situation, there's still time.