@catjac1975 I just saw this post today. Here is something that would work well for tomatoes. It is real simple in that it only uses an air pump, which you can purchase at any pet supply. It is called a waterfarm system, but if you take the photo to any hydroponics dealer you could purchase the parts to built one for much less than a pre-made unit. I built several of these and used them. One problem is they spray tiny bubbles and the nutrient salts are hard to remove from surfaces if it dries. I would keep it away from walls, in the greenhouse it worked great.
Good luck.
Jack
View attachment 25882
View attachment 25883