John Ehrling Hi Cassidy, it could be a nutrient deficiency, overwatering, lack of sunlight, or a pest/disease.

I would make sure you’re not overwatering and that the tomatoes are receiving sufficient sunlight. Inspect your leaves for signs of insects or plant diseases.

Let me know what you find.

Our GardenAI that is part of this app can also help. Click the cube in the top left corner then it is available on the bottom left.