OH Dear She was fine when she went to bed???

Checked last night kssed her goodnight and turned off the light, when i got home from work i poped up to see her and this is what i found! i am devastated as im in week 3 of flower what went wrong??? was the heat wave to blame? PH 5.9 18 ec ionic nutriants with boost 7 others are the same DEAD temp topped out at 32C way to hot i know can i save her sisters? they are ok at the mo nbut a few of the leaves are crusty on the tips, i am thinking lack of oxygen in water help please

whats your rez temps?

Whats your grow method?
32 is to high but it only slows growing down not killing it to that extent. when you say your EC is 18 do you mean 1.8?

check your roots to.

If it got up to 100 Degress F (32 C), it was WAAAY too hot in there... Especially if it was for a 12 hour period... 1.8 EC is VERY high... I only EC my nutes to 1.4 at the most (I use Advanced). They are dying, but they can be saved.... First, Get some AC in there, or they are doomed... Second, ease up on the nutrients... your mixing up rocket fuel... Its WAAY too strong for them.... YOu may want to give them a good flush with Properly PH'd water, and then ease back into the nutes... They should perk up.... Let us know

that's quite shockng. i would cry if i came home to that. very sorry.

ive had my plants outside oon a 100 degree days without any problem u must have heat and humidity and no ventilation or somthing.