I had a total epic fail on ALL seeds that I started for 2024--health and pain related--BUT, I have invested in a total of 5 heat mats, which I have purchased over several years. I have been successful using them for starting tomatoes and peppers.
IF you are growing anything tropical, and tomatoes Are tropical, they want heat. IF they are healthy they will put forth voluminous roots, so up potting is essential until they can go out into their final bed, or pot, if that is your preference.
Keep them watered, warm, and a heat mat will dry them out an prevent mold, but you cannot forget about them.
Lots of plant babysitting!
Also, they get tall. Fast. Invest in this, if you can:
I hate, hate, hate to suggest spending a lot of money of ANYTHING, but, if you really want to grow your tomatoes, you might want to buy this, available at WalMart, probably in January:
Buy iPower Growlight Plant Germination Kit at Walmart.com
www.walmart.com
I also have bought just the dome before at Farm and Fleet, last time it was $6, probably $8-$10 now, wish I had bought 3 of them.