how young is too young for nutrients?

[daisley2005]

i was wondering how young is too young to start adding nutrients to your water?. and what is the best to use at a young age?. my plants are now 3 weeks old, 6-8 inches tall with 6-7 sets of leaves with nice half inch branches

[FireTheft]

you can start adding nutes now.....you want to wait until they're at least 2 weeks old. start by adding 1/4 strength and slooooooooooowly work you're way up....less is more! if you start to see yellowing or burning tips you're overdoing it