What is the next Step???

My plants are under my 400w MH light... In a small/decent size grow space.. the one in the middle looks like its growing faster than the others but yea.. Just wondering when i should start adding nutrients ? Is it cool to start adding to tiny plants after about 10 days? Obviously i will dilute them more than i would for bigger plants.

Need more info to answer a question like that ,soil ? how big are they ? Pictures ??

Soil is a big difference. I think it's a week a gallon of good soil. So I gallon pot transplanted to a 3 gallon pot nutes added on the 4th week. But if hydro aero or DWC if it has roots add nutes.

All good, thanks for the replies but got some good info from another post! Soil is African Violet Mix (Very nice soil if you ask me) and iv potted them into 5litre pots already... They are small like 4-5cm but will add nutes after the next couple of weeks and slowly see how it goes..

Start adding nutes at the first sign of a leaf starting to get pale.

ok cool nice one, will do shot!