I Need Help!!! 3 Week clones are starting to droop...

Hey there,
I have my 3 week clones that were doing just fine. Last night before the lights went out they were all perky and standing tall. This morning when the lights turned back on two of them were drooping, my tallest plant and another one the same average height as the rest of them. Can someone please help me because i'm stuck at what could be going wrong since they were just fine. I have attached some pics to see it helps with your answers. The first pic is my tallest of the clones which is showing the signs of the leaves drooping. The other pic is of it last night right before the lights went out.. You see how they are all reaching for the lights... What happened????? They are in the secondary rockwool cubes and they still feel pretty heavy so I dont know if its a water issue. They only difference in climate was last night the temerature dropped about 15 degrees in the room but i figured if it was due to the cold then when the lights came back on the heat would make them stand up again... They are under a 4ft. 4tube TS kicking out 20,000 lumens and 6500k.. Please help.... I take growing seriously just dont have much knowledge on the subject..

i'd put it down to over watering, how often and how much u been watering them

I think you worry too much. Plants droop over night when they are damp, when the medium dries out they'll perk up.

Hey Frmrboi I think you're right.... I do worry too much... lol... Since this is my first grow I check them so much I dont even notice any new growth.. I just want to make sure that I spot any symptoms early to prevent the plant from dying on me... I water them once a day about a half cup each cube... The cubes feel heavy but when i lift them out the pot but the roots outside the bottom of the cubes feel dry and thats when I water again. Whats hard to understand is how u can overwater a plant in soil but now when using a rockwool cube in an aeroponics system...

Grow Hard said:

Whats hard to understand is how u can overwater a plant in soil but now when using a rockwool cube in an aeroponics system...

Click to expand...

ditto, I think it's a matter of how much air the roots get, in a water logged cube it's next to none till they grow out the sides

Grow Hard said:

I check them so much I dont even notice any new growth

Click to expand...

LOL, oh man that brought back memories. "Watching the grass grow" has new meaning to you now, huh, lol.
They look wet to me, back off the water and wait til they "ask" for it. GL

Haha, lol... you're not kidding if it wasn't for the sweet smell of walking in the room it would be as exciting as watchin pain dry.... lol.. imma probably just hold off on the water until I transplant them into the 5" net pots and into the aeroponic system.. then will come having to figure out how long to leave the sprayers on during watering since they'll be in cubes sitting in hydroton... after the first grow it should get easier..

omg i had to post this that i have the same mini fan as you do!!!!

Lol... all they need is a little breeze right?? I was starting to get a lil fan complex until I got ur message.. lol

ok now here is day 3 w/o watering and they still havent pekrd up any.... I have them in a DWC bubbler system since I cant figure out the right watering schedule for the rockwool I'm using along with the hydroton in 5" net cups. I am starting to get discouraged, I see alot of people with success on their forst grow and I just seem to spending money on good seeds that I cant get to stay alive. I'm not slow so I know I can do it from seed to flower I just dont know what and where I'm going wrong. These plants were fine up until sunday now they are wilted and I think barely staying alive. I see they continue to gro but all of my leaves are drooping. I dont know where to go from here and I feel llike I'm aboout to lose my plants. The ph runoff in the cubes is at 6.0. I'm afraid that if I flush the plants or even add some peroxide I just may do more damage. Like I previously stated , they are currrently ina bubbler system b/c I dont know how to water them in an ebb n flow or aeroponic system which are the two systems i prefer..The lighting is on for 18/6 under 20,000 lumen 6500k 4ft. 4 tube T5. I will be receiving my 400 HPS/MH setup on friday but dont really think the lights have anything to do with it since I've seen some nice grows done with just CFLs'. Please help where am I going wrong??? Here are some pics. The first one is of saturday night right before lights out and the others are of today....