The first photo is of the top step, it is of the spinach that was germinated in the paper towel and then planted into the rocks. We believe the rocks will give a better support when the plant gets taller.
The second photo is of the radishes on the second step, these were planted in the rock wool from the beginning. They are proving to be the better growing of all of the plants in the system. There is one radish that the base looks dead but the leaves are still full and green.
The third photo is of the spearmint on the third step. The spearmint was planted in the rock wool from the start, it was planted twice due to being washed out the first couple days due to the water flowing to much over the top. When planting we knew that the spearmint would be the longest to get a desired amount, due to time limits.
Today we checked the pH, we needed to take three samples due to inaccurate readings. They were 12, 7, 8. We didn’t change anything today because of having two of the readings close to or on 7, we thought that the 12 was just a fluke. We fed the fish a small amount of food today. The water level was checked again, it had only dropped a quarter inch five days leaving plenty of water in the system and for the fish. We are happy with the new basin compared to the old one and realized that the pump needed a larger supply to work properly.
If you need to adjust pH of your solution with fish in it, there is a separate pH adjustment chemical. See me if you need it.