I'm not quite sure what your asking. If you plan to start seeds, vegetable seeds vary quite a lot in what it takes to get them to germinate well in a gh. For example, lettuce has to be sown shallow, provided light, and the soil temp kept around 70-75°. Chard on the other hand needs to be sown 1/2-1" deep, and the soil temp kept around 80-85°. Other types might need other conditions to germinate well. Seeds might still germinate when sown at non-opotimal depths, and kept higher or lower than optimal temps, but it might take a long time, seedlings may be weak etc. The best info I have come across for germinating vegetable seeds is off the back of seed packs from top-notch seed companies, and from the Cornell Guides:

Here is a link that might be useful: Cornell Guides

So what is your question? How to regulate the heat?

Dan

Sorry I am bad to ramble. I guess my question is if the soil is heated do I need to keep the air at such a high temp or I could I decrease it some?

Your soil temp is more important than air temp. Heat the soil and you'll naturally heat the air less.

Dan

Thank you!!