From this week I'll start adding general hydroponics flora nutrients + calmag.
leaves were curling downward due to much light that's why I lowered it in the grow box and as cups were translucent alage started to grow around cup wall from inside, I ended up painting the cups black and also made a small cover to stop light falling directly on medium.
I lowered down the pot in the box as earlier light was falling from 6 sides which confused the plant and growth leaves was improper now they are coming back to normal!