FastBuds BlueDream + Blackberry

It will survive if that's what you are asking. But you might experience slow growth with that one because those leaves are important for seedlings. Basically providing the food for seedlings. Now she has half of what the others are getting. It is early to say 100%. If it was me I would her out. As long as everything is perfect environment, watering, and light she is a weed and will bounce back no problem.

Ok first things first.... your Girls look good. second.. we can always make things better.Lets start with the lights. the sp-150 got 140 watt , that is the optimal light for 1mx1m Tent. I dont know how big your tnt is. and am i right that its 4 plants=? Iam running a similar setup with same wattage. and ive found out that 70 cm are a good distance for seedling in that light. I started with 1m distance and then went down.. I the leaves are moving and one showing up othr day looking like they would fly away , thats normal...............having different colours may be strain rlated.. its 3 Bluedream and one blackberry,, and the blackberry looks different.. I(f you have the feeling she has alack of nitrogen give her some calmag ( contains nitrogen in low dosage. That way you have benefical stuff like calcium and magnesium too. and my last point is your humidity... those girls grow much better with a average humidity... so if possible get a humidifier.. i let you i the comments alink forthe best humidity in dependence of growingstage and temperature

hey there Amnezia, you're right about the cal mag deficiency specifically it's magnesium deficiency , when you have such an intense light schedule you need more magnesium and that's why you're seeing deficiency , so adding magnesium works , but the leafs wont fully recover meaning they wont become green again but it should stop spreading immediately or almost immediately, if it keeps spreading you have light stress in a bad way so you need to dial down the light schedule (you dont want to hear that i know) . At this stage in flower for autos, if you have just started to LST you will hurt your yield, for some reason autos get a bit stiffer than other kinds of plants. same thing with defoliation, your plant is not that bushy, and with minimal airflow it will be fine, defol will shock your plant and may even trigger it to concentrate on making leafs . Hope this helps ! 🚀