Seeds germinated but didn't grow

My seeds germinated fine, tap root was small but looked healthy, I planted them in soil for seedlings, I’ve been using rain water and the PH is 6 to 6.5 and no nutes in the soil, I have the little pots in a propagator, and it’s sitting on a heating mat, so there’s plenty of moisture, it’s been about 7 days for one and about 3 days for the other, and they haven’t broken through the soil, my other plant broke through in 2 days after germinating, it’s a purple haze strain, what happened or will they still grow, I need help

I do not know what to tell you. We all hate to hear this, but evidently you damaged them or did something wrong.

The only thing I can think of, is that somehow you over watered them. All you need for sprouts is a light spray 2-3 times a day. If plants are bogged down in starter mix, they can drown.

Thanks, I’m sure I know what happened, I think the rock wool was too saturated, I tried again and this time it took and the seedling is looking good, thanks again