First time growing, not expecting anything amazing just growing for fun :)
Will be moving into a tent with bigger light if they grow bigger lol.
Do they look okay for 20 days old?
They look as though more light is needed.
They look healthy etc, on tat front all good..
But your light is lacking what plant needs.
Should be around 5-600 ppf at this stage.
Also, your bars at them angles. They should be level pal.