Growing pepper in an aquaponic system will enable you to monitor the temperature and ensure that the nutrient levels are optimized. you will need to have a support framework for the plants. it will prevent the plants from falling on top of each other, which may result in stunted growth. how to grow vegetables in an aquaponic garden. I did a lot of research online about different ways to do a garden w/out having to dig, till, hoe, keep the weeding it every few days, ect... there are lots.