What's your current input's total ppm?
What's your current input's pH with nutes?
What have you been ph'ing plain water to?
How frequent are waterings and feeds at the moment?
Same 5-6-4 and 1tbsp Epsom / 10L water only so far, no changes? And when was it's first feed? Plus how many has it had since?
Thank you man again for your kindness, you are the only one who can help me.
I will write here all the schedule.
Plain water should be 7.9 PH and 0.4 EC (8.1 for the cheap chinese ph meter, I'm sure it is not perfectly calibrated). I correct it with 1ml of plagron lemon kick every time I water (7 PH with cheap pen, so I think it is 6.8 ).
I usually water, then 2 or 3 days no water, and the next day I water.
9 sectember - first seedling
14 october (36 days old) - 0,3ml/1L Bio magno fioritura OM
19 october - 1/2 tsp./ 1.5L Epsom salt (1 EC)
Here's when drooping problem came out.
28 october - 0,7ml/2L Bio magno fioritura OM (6.8 PH, 0.8 EC)
29 october - here is when the plant was very droopy, the worst day I can say, but it got better after a couple of waterings (where runoff EC was pretty high, 2.3) as you could see in the monday update.
8 november - best condition, monday picture. That day, I had to do some LST just to give more space between branches. I didn't have any problem, just a broken leaf.
12 november - a very small sparkle of epsom/2L (6.8 PH, 0.7 EC, runoff 5.6, 1.6 EC)
13 november - today's picture
If it can be helpful, I have the smaller sister (13 days younger) which has been living in the same soil compost. It has been fertilized only once with minimum doses (0.5ml/1.5L Bio Magno on 1 november) but it is doing great. Just a couple of top leaves getting very red, maybe phenotype.
How powerful is your light!? And how close is it?
It is a cheap quantum board 120w, max dimmered, far 13' from the plant.
I really don't know what's going on. I'm sure humidity and temperature are perfect.
I'm not sure if it can be a lockout, that's the problem, as you can see it didn't get so much nutes. I didn't even get to the recommended dosate (1ml/1L).