With a proboscis like that, we know that it's a predatory stink bug, but I can't find an exact match for the genus and species. When I first saw it, I thought for sure that it was a Florida predatory stink bug nymph (convenient that you're from Florida),, but the coloring isn't right. But, it is a predatory insect, it is a stinkbug, and it is a nymph. It's a good guy! You might want to Google the Florida pred. st. bug adult and nymphs and maybe you'll come up with an instar that's mostly red.

does anybody know of websites that have answers?

Not necessarily overwatered. Edema is caused by environmental conditions of moderate temperatures, fully moist soil (or potting mix), and relatively high humidity. Not damaging.

A number of teeny tiny fellows get stuck on the stems of my tomatoes. never caused a problem. If you want to ID those very small fellows, I suggest you take a sample to your county's Extension Service where they can look at them with a microscope. Find your county office: http://npic.orst.edu/pest/countyext.htm