what soil do you recommended for seedlings and veg growth? im currently growing 4 seedlings which are 12 days old. ive notice a slower growth then previous times. i think its because the potting soil im using could have too much mulch in it, slowing root growth. anyone who has knowledge of this feel free to help me out. im using a 400 watt super HPS
Mulch, if correctly applied, does not slow down root growth, it helps it. I make my own soil, and am on the left coast so can't help you. There are a few right coast folks here who should be bale to help you out.