Burnt (heat) and droopy leaves (pis included)

[bio1]

Hi!

What type of medium? soil
What brand and type of soil? biobizz allmix
Indoors or outdoors? indoor
What strain? ak48 & white widow
How old are the plants? 3 weeks into flowering (from schedule change)
What type of lights and how many watts? 2x 400w hps
How far from the lights? 20cm when burnt, 40 now
PH? 6.3 since a week or so (fed them with 6.8 before)
What, how much and when was it fed? NPK? biobizz nutes after recommended schedule
What are the temps and humidity in the room? i know they are not ideal (28-30°C, 30-35%)

Pic #1: droopy leaves caused by overwatering? I feed each plant with 0,5l water daily (in the morning) now, but i first tried with more and would give up to 1l / plant per day to see how much they could take (i watered 3 times a day when i did this)

Pic #2: (heat)burned leaves because (i think) the lights were too low?

Pic #3: the same plant as in #1, shes about 90cm tall

Pic #4: i got 5 plants, three tall (one of them sharing the pot with the burnt) and two small, one of them in this pic


also my fan which was pointing on the plants got broken yesterday (ordered a new one today, should be here by monday)... the charcoal "system" is the only air circulation right now

i think the lower yellowed leaves are caused by a nitrogen deficiency (already had a thread about this when they were younger)... but the new leaves look good so i think this problem is solved... can i cut those yellow leaves or shall i leave them? (they are just so crappy to look at =))

i wanted to take some more (+pics of their room) but lol the camera had low battery lol (and i always have a friend to come over with his cam^^)



#1


#2


#3


#4


also they do smell a little but not as i thought cannabis plants would (guess the smell will increase alot in the next wees? =))

anything i need to take care of ?

[SmknVTEC]

Hey man they look pretty good. Plant from pic one has too much nutes, slight fert burn. Here's the thing, if the soil/pot has good drainage, you should be able to give the plant as much water as it needs to get some water running out the bottom. Doing it that way saturates the soil enough so that you should not have to water it for a couple/few days.

Plant 2 did get light burned.

And as you already know temps are at the high end of the comfort scale but don't seem to show any signs of heat stress except of course the light burn which is slightly different.