I wanna steal your cat (and your seedlings obviously)
I think your seedling have some ph or ec problems but nothing too heavy.
I hope that the white dots are also ph or ec problems.
Ps im drunk
So yesterday i was thinking what caio have said about the dark and their stretch and about my older girls.
Since i straped her down and i want an even cannopy, i gave them 8 adicional dark hours to their usal 4 to see how they react, sure enough all the bud sites, the little ones and the bigger ones, all perked up, dunno if because the darnkess or not...
^^^^^ yeesss i turn the pots 90° with every crops, not only cannabis and not only on seedling stage. Every day with every pot.
Trim also the lower branches of the first two node of your older plant. These are called in italian "succhioni" or "femminelle", "suckers" or "sissies". These doesn't yield as the upper branches and suck precious energy from the plant.