6 Week Old Plant - Leaves Droopy & Curling PLEASE HELP! Pics Inside!

I'm growing from seed under a 400w MH. She's about 10" tall, and I topped her last week. Feeding TechnaFlora nutrients.
She suffered a tiny bit of nute burn so I flushed her and started back at 1/2 strength and she seems fine now.

18/6 light schedule. Runoff PH is 6.7. Growing in a Promix HP & Perlite blend.

I noticed today she's starting to droop a lot. The leaves still look pretty green and healthy as far as I can tell, but she's looking sort of sad?
Could the drainage be an issue? I'm thinking about drilling extra holes in the bottom of the 3gal bucket I have her in, would that help?

Also, when should I be flowering? I have 5 feet of height to grow in.
Should I wait till she's a full foot tall before I switch to 12/12? Or till the nodes alternate?

Thanks, you guys are the best. Lx

Looks like not enough drainage, you should only be watering when the top 2 inches of soil are crispy and totally dry. Make sure you don't have any stagnant water sitting in the bottom of the pot. If that's 6 weeks old its TINY, you need more light and Nitrogen. You could also trim a couple of the branches on the bottom of the plant to encourage growth. Good luck.

O and to address your flowering question, if you flowering under MH (blue spectrum) she will not stretch too much. If your flowering under HPS then she could double or even triple in size.

they look fine i dont see anything wrong with them.........just wait till they get compleatly dry b4 you water them also what light you using

Thanks so much, yeah I just flushed her a few days ago and I think the soil is still too wet. I'll try drilling some more holes and letting her dry out more.
How big should she be around this age? I'm using a 400w MH right now. Is that not enough light for 3 plants?

Should I be adding some CFLs or something? How can I treat N deficiency?

And yeah, I'll be flowering under a 400w HPS. I'll try trimming some branches off the bottom too.

Bump?

I'd really like some more opinions/input.

you said you just flushed her out so i would think shes just a little over watered i would wait till shes completely dry before you water her again other than that she looks great. as for when to switch to flowering you can put her in flowering whenever you want in my experience ive seen that plants usually double or even triple in size during flowering so it just depends on how big you want her to get anyways hoped this helped

My opinion...you're doing just fine. From the pictures you've shared there was nothing wrong with your plant, no defeciencies, no burn and no malformations.
400 watts of MH is enough for 3 plants, certainly but is it the right spectrum for vegging!? I thinks it's a pretty common misconception that MH are better for vegging and HPS for flowering, Ive found that plants that want to grow Lots of leaves like alot of HPS for vegging and lower intensity MH for flowering, while stalky plants with tall internodal height like the MH for vegging and HPS for flowering.
Think of it this way, the colors green, indigo and violet are colors that plants hardly "see" and can process, metal halide radiate much more blues and greens while HPS radiate alot of yellows, reds and UVs...colors readily available for photosynthesis. The MH light is the culprit with your plant being so short but it looks about right for it's age, especially if you had some troubles with getting that cutting to root. Now, for your leaf curling. I've noticed that once a plant has been watered it notices it and starts using more energy to absorb as much as possible rather than continue to focus on photosynthesis and the leaves, especially lower branched leaves start to curl and temporarily lose their rigidity. Ive made it a habit to water an hour or two before darkness, watering while the plant is under the hot sun or hot lamps just doesn't make any sense. I mean in nature when do you get rain when it's sunny? give your plant something to do at night, give it a light drink.
P.s. A pH of 6.7 is kinda low...get some egg shells out and mix it in the top inch of ur soil and flush it before your soil locks up and your baby starves!!!!
Good luck

Seriously? I've always heard it was MH for veg, HPS for flower. My ph used to be at 7 but everyone told me that was too high, so I brought it down a bit. Everyone keeps giving me conflicting advice, it's all very confusing lol.

mh for veg and hps for flower..........i keep my ph at 6 to 6.5 never had a problem........ are you giving it any nutes yet? it looks overwatered and 400 is fine for 3 plants

Where to start! The plant shown looks fine to me. Because you are using the MH for veg, it will give tight internode spacing, meaning more bud sites in any given area of the plant. Since you recently flushed, I think that is the source of the current symptoms you are seeing. Be patient, as the guys said, let the top couple of inches dry out before watering again. Why only 18/6 lighting? MJ can and does grow 24 hours! 18/6 can cause stretch (not obvious in your plant) and is wasting 1/3 of the available growing time. If I said I could make your plant grow 33% faster without causing any harm to it or using any fancy nutrients or stuff you would go for it. So get that light on 24/7 until the flip. There is NO POINT in putting a plant into flower BEFORE it shows sexual maturity (alternating nodes) all that would happen is you loose half your growing time, cause stretch and the plant would not start to flower until AN appear. This of course is as long as your plant is grown from seed, if from a clone, the clone is the same age as the donor plant. The perfect ph for mj in soil is between 6.3 and 6.8. Above 6.5, Manganese and Iron are not absorbed and below 6.5, Phosphorous, Calcium and Magnesium are not absorbed. The best advice is to target your soil, water & nutes at 6.5 to get the best nutrient absorbsion. 400w HPS gives around 55/60ooo lumens, a 400w mh gives around 36,000 lumens (all when new bulbs and at source) When vegging, you need 3,000 lumens per sq ft of canopy and for flowering, you need 5,000 lumens per sq ft of canopy. The number of plants is immaterial, it is all down to canopy size. 1 plant grown on a 1M2 SCROG needs the same light as 36 plants grown in a 1M2 SOG. I know all this was very technical but these are basic parameters that once learned will serve you very well and allow you to make informed decisions about your grow, not just "in my opinion guesses". Peace, love and lots of green mojo on its way to you. W

looooks like the bottom of your pots are still wet just drill afew holes in them .. you will have better drainage and continue to be fine.. that bitch looks great other than that small prob.
good job man