Hello!Those pots look like the inner pot is an insert to the outside pot. If so you should place something in the bottom of the clay colored pot to lift it up, unless there is drainage holes on both pots. (I think I might still raise it.) something simple can do it. Even a couple of dice in the bottom to sit the other pot on. This is just to ensure good drainage.
Water til run off, but ease up on the nutes. The first set of leaves are already burnt, so they are not helping the plant photosynthesize.
After they get a couple more sets of leaves I would also up pot them to 3-5 gal. or 2-3 gal pots if you are restricted on space.
I am currently growing in a 2x4ft tent that’s 60in tall; what pot size would you recommend?