Sorry, but I meant they don't look healthy. What is the actual max/min temperature? It's very important to monitor -- easiest with max/min recording wireless remote censor with display base in the house, but at least keep a thermometer in it and go out and check during mid-day/early afternoon (with full sun) and first thing in the morning at dawn. You really want the seedlings to have a strong start or they will struggle and fall prey to pests and diseases.
You may want to try bringing them inside for the night if temperatures fall below mid-40's. Or even start another batch of seeds. Tomato seedlings will grow slowly but well in 50's to 60's.... Low 70's at most. They grow too fast and spindly at mid-70's to 80's.
Here are some of mine that were moved out of the warmer 70's location to 60's. They will be going out to the garage with temperatures of 50's/low 60's day and upper 40's/low 50's night soon to slow them down and to develop stocky growth. Space is limited inside, too. They'll get better/stronger light than this in the garage set up.
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