But, I didn't write to talk about cats. I wanted to talk tomatoes. If the tomatoes you are starting came from greenhouse grown ones, more than likely they are a hybrid and won't grow true to type. Do you know if they are open pollinated or not? You might just be wasting your time. Try totallytomatoes.com for seeds. A packet isn't anything and you can try a bunch. Personally even though I grow different ones I keep coming back to Rutgers tomatoes. They do the best in my garden. What kind do you, and anyone else on the thread, grow?
I would like to personally recommend Neves Azorean Red, an open-pollinated "heirloom" variety. Big red beefsteak (1 lb. +) with rich flavor. Makes a tasty BLT.
The tomato virus has taken over my yard so I can't grow any right now. I will enjoy your vicariously.
Recommended resource:
and (this catalog carries NAR)