It is in really bad shape, no sign of significant growth after three months in my aquaponics set. Replanting it into soil and let it grow.
Trimmed those dead leaves and cut back on the roots to let new ones grow and stand in basin of water for few minutes before potting it to soil.
After that let the pot stand in the basin to soak up, leaving it overnight this way to get it fully watered.
Did not add any fertilizer yet, let plant recover and then I give it some chicken manure base organic fertilizer.
Will transfer to bigger pots as and when required.