newbie ? on seedling

I'm on my 3rd grow but still a newbie I neverev feed my plants untill she was a about a foot long. My ? Is when can I start feeding my seedling she is about two going on three weeks old... please advise thanks

if its fem and her roots are to the bottom of your container, just transplant to larger container, no need to feed, if its a reg seed give it time to show sex before waisting anything on it

In general you can start feeding very lightly when the plant has about 3-4 "sets" of leaves.

Sweet thanks fellas I only got about two set a leaves and its only 3 to 4 inches long right now its kandy kush from attitude seed in a soil mix.