Indoor stunted growth wih yellow leaves

It has been over a month now and my indoor still hasn't grown much bigger than the diameter of a 3 cm and a height of 10 cm.

The leaves are also yellow and are starting to curl over.

I havn't used any nutrients yet as I was unsure what to use and was worried about burning the plant, I guess I should look into them now

-TF

generally when it starts turninng yellow when you have not given it nutes it is running low on N. Give it some nute, should pick up the grow pace and also help with the colour.