My black krim tomatoes are doing the same thing this season. None have gotten bigger than 2-3 inch diameter, and then ripened. But, EXCELLENT flavor! I am disappointed with the size ( especially considering one plant is literally 7 feet tall), BUT, the flavor….mmmmmm….Point is, sometimes, you do everything you are “supposed to do”, do everything correctly, and environmental factors, or seed quality says, “nah. Here’s how is gonna be this season. If the flavor is good, and the harvest is good, I call it a successful season!
just sayin’………….