Thanks for the replies. I don't think its spider might on the peppers but it does look similer to your photos.

All my plants in general seem to be doing better (except for the peppers) or at least not getting worse. I think at least the bug issue is somewhat under control. I noticed within a day or 2 of removing the insolating plastic from the shelves that was keeping the plants warm that the plants seemed to stop getting worse to such a huge degree. I think that the environmental conditions were just right for the bugs to flourish. The plants had red spider mites, thrips, white flies, and other bugs, maybe aphids and white spider mites? Most of the watermelon has died though. The leaves were so dried up from bug damage and some stems broke when separating the plants and spraying and rubbing the leaves to squish the bugs.

Here is an update on the peppers. :’(

I fertilized the peppers last night. I was very careful to not get any on the plants. Today when I checked the peppers they looked a lot worse. The leaves looked even more bumpy, curly, and sick looking. Even the ones that I thought were the healthiest. They also have a lot of buds on them but they aren't opening up and are drooping. Either the fertilizer is poisoning the plants or they have a virus and I accidentally spread it to the other plants with physical contact from the watering can spout? It was practically impossible to not have it touch the plants when I was watering. I have fertilized 3 times I don’t see a single bug on the plants unless they are microscopic so I don’t think its bug damage. I think either a virus (Tomato mosaic virus (ToMV)?) or nutrient problems?

Any ideas. I would at least like to figure out what is wrong with them, even if they die so I know for next time.