Slow growers

It's my first grow too so I cant give you too much advice but mine started off real slow too. 3 weeks almost no grow but evolve a bit every week now they seem to be taking off. My humidity is 70%-85% temp is about 70 - 85. I'm growing in organic Kryptonite soil watering first 2weeks with spray bottle then slowly water from outside going in. I'm adding a bit more water every time I water until I find the right recipe. Good LUCK il be rooting for ya

So I've fed them 1.4 reccomend dose of canna vega they are 3 weeks yesterday and how autos go should almost be ready for going into flower I dont know what I've done wrong or if they will even grow much more but just learning as I go ...