Quick question: I fermented my tomato seeds for almost two weeks. Will this negatively affect viability? I'm guessing not since they went undisturbed in a dark environment and remained under water, but I'm not sure.
Two weeks in a zone 9 is a very long time to ferment seeds and I'm surprised they hadn't germinated already.
but let me ask first which method you are using for fermentation.
At this point I'd get those seeds out of there by lifting off the mold growth.swirling the contents and alllowing the liquid to run off along with the pieces of tomatoes, then add more water and repeat until the water is clear and then nothing remains in the container except wet seeds., dump them out on a non-coated paper plate,seperate the seeds withyour fingers and let the the seeds dry and do some test germinations on them.
Even here in zone 5 my fermentations are usually complete in about 5 days, a bit longer when the weather gets cooler in the Fall.