New grower in need of help.

[CCisme]

Hi new here but I've been lurking forever. I started two dark angels from cks, they came up the 14th and 16th of March. We, over the course of the last week, finished building a veg cabinet. 3x3x4. Im using a 2 foot 8 bulb t5. Girls were doing great, thursday morning one of the girls had large yellow/light green shadows, by that night the spots had yellowed with brown edging, also noticed the texture to the leaf was waxier? Watched and waited spots never spread she continued to grow.

Sat. moved girls to 2x2.5x6 tent for the day under a galaxy hydro 300w set on veg about 30 inches away. Did this while we finshed scraping and painting the veg area. Everyone seemed to love the new home after we rehung the light sat night.

Sunday transpalnted to 5 gallon smart pots from lil air pots, saw good root growth in air pots, everyone tucked in, leaves raised to the light last night. This morning woke to spotting all over the two dark angels.

Coco was rinsed the night before transplant in 5.5 ph'd water with calmag and let to sit over night. Girls were watered 4 hours before transplant.
Lights t5 24/7 about 4 to 6 in away
Temps have been a struggle. I usually end the daily battle having held at 79f and 42%. Highest has been 86f lowest 72f aiming for 75f for veg. Humidity 35% to 50% usually low 40's is were it settles. Installing an exhaust into that room.
Growing in coco following tutorials from here for mixing with perlite and using the gh trio schedule from here, water with calmag, 2 days, water with seedling nutes and cal mag. , 2 days and water w calmag ect..

Hopefully Ive got all the details you need to possibly help. I have never grown anything before this. My nephew thinks maybe aphids? Sorry about the crappy pictures.

Mar 22nd watered w calmag. Ph'd 5.8 in and out 6.1 and 6.2 78f 42%
Mar 24th Nutes seedling strength w cal mag. (ppm 611) ph'd 6.3 and out at 6.2 and 6.3 80f 41%
March 26th watered w calmag ph'd 5.7 and out at 5.8 and 5.9 81f 47%

[NebulaHaze]

So you first saw the spots immediately after transferring into a bigger container? The spots almost remind me of overwatering/root problems. I almost wonder if they just got a little overwatered from the transplant into a much bigger container. 86°F is pretty hot, but if that's the upper limit and it was usually lower than that, I'm not sure I'd worry too much about the heat just yet. I don't see any sign of bugs. Overall they actually look pretty good!

Does the damage remind you of the symptoms on these plants? These symptoms were caused by overwatering/heat:

[CCisme]

I saw it first on thursday night. But only on the first set of real leaves on one plant. Then nothing more until today, when both D.A.'s show small spots everywhere. I had thought maybe overwatering also at first and was sure of it when it didnt spread or even made the nutes to strong?( I tried to account for 250 starting ppm from tap with little less then seedling strength.) But now... Im glad to hear they otherwise look good.

[CCisme]

I shall let them sit and dry out really good. Maybe 2-3 days out instead of the nute feed tomorrow. Thank you.

[NebulaHaze]

That sounds like a good plan. I don't think you got those symptoms from too high levels of nutrients. I think it's more related to the roots. Sometimes it can help to give small seedlings just a little water in a circle at first, since they're not drinking much. Then as they get bigger you can give them more and more water at a time until you're saturating the whole growing medium. It sounds like you're right on track, and overall they look like they'll bounce right back with some TLC