Bought a nice looking sprouted onion from the store (RM 2.40 per bulb).
Grow greener and longer within a day.
Seems to have some small tiny roots, and the greens are growing well.
Not much changes.
The water goes murky easily, and there is no clear sign of root growth.
The bottom has gone soft with pungent smell. Try to submerge it with baking soda solutions to see if it could be salvaged.
The onion is dying, with the inner part rotted while the outer layer still looks good.