Fertilizante crecimiento

At least wait a few weeks before fertilizing. Your plants are still seedlings, they don’t need much but some RO water. Hope this helps.

Sounds like you amended it pretty well so I would wait until week 3-4 to start feeding veg nutrients. Your plants will tell you. Hope this helps

Por el momento te recomiendo que utilices sólo el ''ROOT'' para las raíces.

if in soil, your soil will handle it for a while... how long varies based on numerous factors impossible to predict from info given. watch the cotyledons.. when they start to pale, you can probably start ramping up fertilization... as the soil's nutes get used up, you increase dosage to "full" over time.. this is like riding a bike and depends on what constitutes your soil, as that can be drastically different from the next person. take note of how it progressed.. did you do it late? did you preempt it too much? then, if you use the same products next time you can use a better plan and see how that goes... evenetually workign out something that is seamless.... slowly and surely without muddying the picture too much.

Growth fertilizers are usually applied after 2nd or 3rd week from germination.