Right, if the soil is moist, it should only take 2 days tops to pop up. When the seed shell fall off, exposing the cotyledons, you can put the flous on the plant, fairly close, but not touching.

Once the plant has its 3rd set of leaves, you can put it under the MH

Only water when the top inch or 2 is dry, dont do it more than this, it might look like it needs it on top, but it doesnt because it will be very nicely damp in the bottom.