nute burn big time

yeah I was thinking the same thing about the type of leaf damage. thanks

How much water should I flush through each plant... and is it ok if I un PH'd tap water?

Im not positive either way on the non ph'ed tap water for flushing but as easy as it is to correct the ph levels i always correct my water before a flush,its just too simple a task to overlook or skip, i do use tap water that has been allowed 48 hours of evaporation & oxygenated for watering & flushing.

From everything ive been told & read were supposed to use 3 times the volume of the pot to flush with,for example a 3 gallon pot would require a 9 gallon flush,this is massively excessive,i use 1 gallon to flush my 3 gallon pots with & around one half gallon for my 1 gallon pots & its worked perfectly every time.

I am not the most experienced here but how far are your lights from the plants because i swear it looks like the tips are burned from heat and not so much from nute burn...

__________________
Any involvement in illegal activities expressed and/or implied by my communications in forum r untrue and solely intended for entertainment only.

If you look at the burn pattern on the plants you'll see that light/heat burn is unlikely,the leaf damage is equally dispersed throught the canopy & well below the canopy,in some cases the damage is more severe well below the canopy.

Flushing... there is no way I can ph 60 gallons of water ( don't have that amount ready)... nor do I have 2 days to wait for proper water while the plants continue to burn. So it comes down to waiting or stopping the burn flushing it with unprepped water. I would say stopping the burn is more important... ideas?

it very well could be..i cant blow the picture up to see below the canopy.....in the info for the grow it didn't give a distance of light to plant so i just wanted to make sure it wasn't overlooked...................if your light is a good distance from the plants then just ignore my post but if they are close i would back them off a little and see if your problems correct

__________________
Any involvement in illegal activities expressed and/or implied by my communications in forum r untrue and solely intended for entertainment only.

I agree with not waiting but the ph deal im worried about,you dont have to ph every last gallon of water to flush,after you flush everything with room temp tap water then you can take a 5 gallon bucket,fill it then ph the water then give your flushed plants a quick rinse.

I cant see very well from the pics but the damage doesn't look like nute burn to me. It seems to occur sparaticaly on all different parts of the plants. The pic of the top-middle leaf on the first pic looks exactly like the textbook pic for severe phosphorus deficiency from the medical marijuana growers bible. I have burned my plants using the foxfarms trio and it looks different from what I see in your plants. Either way I def agree with flushing your plants. If it doesn't get better then I would suggest adding a little more Tiger Bloom then you normally do. Thats just my 2 cents.

__________________
Free to the power are the people in uniform.