What’s wrong with one of my young plants?

Hi there, fairly new uk grower here looking for some advice. I popped 2 inhouse genetics skywalker og x platinum around 18 days ago, I started them in eazy plugs and they took off fast. I transplanted the to bigger pots filled with ecothrive coco with 2% charge about 5 days ago and roots are already out the bottom of the pot, 1 of the plants looks happy but the other one looks a bit sad and seems to be drooping slightly so I’m looking to find out why this might be. The plants are currently under a diyleduk 275w hlg led turned down to 50% hung about 10 inches from the plants, temps may be a bit low sitting at a steady 16c lights out and 20c lights on, humidity is steady at 60%. They have had one feed of emerald harvest Cali pro a+b at 50% recommended strength for seedlings since the transplant. I don’t think the drooping is caused by over watering as I’m conscious about keeping a good wet/dry cycle, I don’t think it’s over feeding as they have only had 1 feed at 50% strength although the coco does have nutrient content. I have attached pics for you guys to see and I’m wondering could it be any of the following. Temps to low? Underfed? Transplant shock? Am I just being a wally and need to give it a bit more time to settle in new pot? Any help is much appreciated

What was your temp at?

it looks like you have over watered them a little bit. the bigger one looks better because it's rooted better and probably more established. i would say just try not to over water them. lower your water when you water them. coco likes lower waterings more frequently. Other than that you are doing really good

Pre soak/flush your peat

SipSlowDabLow said:

What was your temp at?

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Hi, they are a bit low at the moment sitting at 16c lights out and 20c lights on.

peterstoke said:

it looks like you have over watered them a little bit. the bigger one looks better because it's rooted better and probably more established. i would say just try not to over water them. lower your water when you water them. coco likes lower waterings more frequently. Other than that you are doing really good

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Thanks for the reply I didn’t think over watering would of been the issue as they have only been watered after transplanting but I did fully soak the medium so maybe I should of just given the a small watering, I’m waiting for them to dry out now so will see if it perks up a bit as it drys.

Okay- I am thinking over or under watering based on the look- sorry for the late response brotha- lot going on. I'm a beginner myself- but I try to help with what I know. Good luck my dude! They are looking nice.

Scottydadog said:

Hi, they are a bit low at the moment sitting at 16c lights out and 20c lights on.

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I don't see any watering issue with them. Temperatures are definitely too low all around. I wouldn't let my plants get below about 18 C lights out. I aim for about 25 C lights on. Currently I run about 69F lights off and 77 F lights on. So about 20.5 C to 25 C.