they actually look quite healthy the yellowing is from using bottled water there’s nothing in it so could quite easily be
I would double check ph
Okay, I’ll try to go back to using tap water now since I can just ph the water to what I want now.
@Xnate13X sorry for not welcoming you properly to the forum! Welcome!!
You are gonna love it when they really start taking off
With the stretching issue , once you transplant you will be able to bury the stem to make up the hieght and it will just turn into part of the root system
They look healthy and I am with @Donaldj on the yellowing you should be fine just use tap water. Let it sit in an open container for 24 hours or so to let chlorine dissipate before watering and with that soil I would pH my water to 6.5-6.8 because it has coco coir in it which is quite acidic when in contact with water. At least that is how I understand it. I am using roots organics for my seedlings too great dirt my favorite so far! Happy growing man great set up!!
Thank you, I went back to watering them with tap water that I had sit there for a couple days in an opwn 3q container. It ended up being at 240 ppm which seemed fine for tap water and the PH was at 8.0 so I ph’d it down to 6.7 and watered with that. I don’t ACTUALLY know if watering the whole small pot was something I’m supposed to do at this point since they’re a bit bigger now but I did it for the first time yesterday. I was just watering around the stem a bit but it’s been drying out really quick recently so I watered the whole small 4x4 pots this time and they seem to be happy with it.
As for the yellowing, it hasn’t gone away but I think I’ve stopped it from progressing by switching back to the tap water. I do think as well that it was the distilled water that caused that. It must have not had what the plants wanted from the water. I can’t say for sure because not all of them did that, but I shouldn’t have to worry about it again since I can now read my PH level every time.
@Myfriendis410 @Donaldj So here’s a start of week 4 update. 5/6 seem to be doing well other than a slight twisted leaf here and there. I don’t know why a few of them are twisting, each seedling seems to have at least two and the points on the side of them are going down a bit, they’re not as flat and preppy looking as the top ones.
There’s still that 1/6 seedling that’s giving me major issues, it has yellowing, weird growing leaves that are twisted a bit and that yellowness isn’t going away on this one. It stopped on the other one after PH’ing down the water to 6.5-6.7. I don’t know what the issue is with this one. I added used coffee grounds to it, about 1tsp, (idk how much is enough) and hope that maybe that will fix it. I’ve no idea, but it’s getting so behind all the others. ):
Any ideas?
The nature of seeds it rare when all grow exactly the same I would focus more on my healthy plants and likely just cull the runt myself
So, I think I found out the cause of the yellowing on that plant and the leaves starting to twist. Either it was a super big coincidence that they stopped and got healthy now OR it was due to the slight breeze by the fan I’d have on them for ~2hrs/day. It was distanced far away and only a slight breeze but I guess it wasn’t slight enough for their size. With 3 days of no breeze, the yellow growth has stopped and only green leaf is growing. The slightly twisted leaves haven’t straightened out yet (idk if they ever will) but nothing else is continuing the pattern now. I guess I’ll return to adding a breeze when they get older.
If the yellowing has stooped, then that’s good news. 
One of the plants has reached and is pressed against the top of the dome, another one or two are close and the rest have an inch-inch and a half. I think I’ll take that one out today and potentially remove the dome from them all Monday and start them under the MH light at a decent distance and lower it as a few days go by. I don’t want to roast them. What do you think, start at 36" and work my way down to 24, an inch or two a day? It’s 600w
That sounds about right, but usually you want to give them a few days before adjusting the height so you can read your plant to decide if you need to lower or raise them up.
Okay, I will do that. Is 36" a good height to start at or is that a tad high?
With a 600w, I think that’s a good place to start 
@Myfriendis410 @Donaldj @MattyBear @Growit So, I removed the CFL light and turned on the 600w MH light at 36" away on my plants since they looked like they were needing more lighting now. I did that about 9hrs ago before work. I just came home from work and 4/6 of them look okay… 1/6 looks like it’s getting very droopy and the last 1/6 one is TERRIBLE! It was one of my best plants until today! It was dropping down and all the leaves are hanging, take a look at this! I think that means too much light? I put a stick to try to hold it up and raised the light up another 1 foot but the light is about to turn off for the night. I’m going to transplant them all into their 3gal pots tomorrow afternoon since the roots are just about coming out of the bottom now on them all. That one is SO sad, does anyone know what the problem may be? Do you think it’s just the lighting being too strong? Maybe I should turn the ballast to 75% instead of 100%? It has me worried since that was one of my two best plants.
The one in that first picture was perky as heck before work today, now it’s droopy and flaccid as heck. :(( Help please. Will she recover? She was seriously 90 degrees and leaves hanging to the dirt when I came home, it scared me. I was thinking I’d come home to happy plants, not dying plants.
I would say they are root bound and over watered
@Donaldj @Covertgrower @Countryboyjvd1971
@Growit @Covertgrower Yes, there are six holes or so on the bottom of each pot and I haven’t watered them since 3/17/18 morning. The soil, at about 1" deep is cool and not really wet at the moment (it was wet a bit before work still). I was letting it dry a bit before transplanting in about 11 hours from now.
What I think happened is that since I just switched lights from CFL to MH today before work, the plants sucked up all the water in their little pots and that one suffered terribly from that. I think that’s where you’re getting the thought of it being over watered since it sucked up everything in the pot.
Read my post and let me know what you think. I moved the light to 4’ from 3’ away and put the ballast on 75% instead of 100% and hope it’ll get better.
Do you think it’s safe for the night? The light turned off 43 minutes ago and turns on in 5h17min. I feel as if I should be doing something with it right now.
leave them be if it is perky again in the morning it is simply adjusting to the light it’s a big step up to go from CFL to 600w MH they usually take a few days to harden off and acclimate. If the pot is light water has weight leave it you have to keep in mind with more light plants will drink more they can drink a small pot dry in a day or 2
Are the 2 plants close to a fan or intake vent?
Okay, will do. I have them 4’ from the light now and ballast is at 75% now to be a little lighter on them upon new day cycle. Hopefully they do pop back up. I will be transplanting them later today and watering them nicely. Hopefully that does the trick. I’m just worried they’ll get worse between now and then. I read that you shouldn’t water before transplanting, so that’s why I wanted to let the soil dry out a bit and just within the hours at work today they drank their soil to a dryish-cool state and that one plant really took a hit.
No, there is no fan near them. All 6 plants are near each other and the carbon filter/vortex s800 is at the top of the room ~ 7’ above the plants in the corner. Here are some pictures from a couple days ago to just see my layout of the fan/filter/light.
Let us know how they look buddy hope they perk up for ya!!
ISN’T THIS FUN??? You are experiencing the joys and sorrows of indoor growing, for sure! You have good solid support so I think everything will sort itself out soon.