Water, and food

En la primer semana puede empezar humedecido las partes de alrededor de la plántulas con 300ml de agua dia por medio, ya que en esta etapa no absorben mucho. Luego da la primera semana puedes aumentas tu dosis de riego a 600ml. En la semana 3: 900ml y semana 4:1.2ltr El sustrato como dijeron puede aguantar 4 semanas si aplicar nutrientes. Agregar potasio en floración es fundamental.

Miracle soil will basically give you like around a month of nutrition for your plant, no need to supplement. With nutrition it depends which route you want to take - bio fertilizers or mineral ones. I'd recommend getting a basic starter pack for growth and bloom - BioBizz Bio-Grow/Bio-Bloom/TopMax is what I personally use, you can also get similar products from other companies like AdvancedNutrients. When it comes to watering in the seedling stage - give it just enough water to moisture the area around the plant. I'd also recommend keeping the rH levels at ~60% at this stage, you can also make a humidity dome from a plastic bottle and that will also do the job 😇