when do i fertilize my plants!!

i have about 8 plants and some of them are freshly sprouted and some are 2 weeks old they are outdoor in small pots

when should i fertilize them?

if there are no nutrients in the soil, 2 weeks is a good rule of thumb and if using synthetics go 1/4 to 1/2 strength first. fresh sprouts dont need fertilizer for at least 7-14 days.

i always wait for atleast 2 weeks before feeding them ,they are fine with what they got in the seed until then .

In hydro you can put your sprouts in rockwool and start them in the lava rock/hydroton budding table. My table runs 1/6 of what the fert instructions reccomended for dirt all the time..