The plants are continuing to get bigger and look promising for our harvest day (May 8th). We changed out the old water with a PH of 7.5 with new water with a PH of 6.3. By looking back at our system and the growth it has provided, it has been a very cost effective and efficient system for growing lettuce. Our lettuce looks just as healthy as it did at our initial harvest.
The lettuce is doing great!! The new lettuce is mixing and growing well with the remaining original lettuce. The PH of the old water was 7.5 and we added the new nutrients with a PH level of 6.3. By next Wednesday (Harvest Day) we should have a decent amount of developed lettuce!
We finally got the PH level down to normal. Our PH has been running extremely high for the past few weeks. Today the initial reading was 8.1 and after trial and error of adding more nutrients, the final PH in the new batch of water read 6.4. The plants should continue to grow well. They finally have a normal PH reading because it is slightly under 6.5 and our lighting is still set at 18 hours a day.
The plants are looking great!! The PH reading today was 8.1. We switched out the water for a new mixture with a PH reading of 7.1. So far the new seeds have continued to grow and the old leaves still look healthy.
The new seeds are beginning to grow! We switched out the water again today because the PH level was too high. It was at 8.2 and the new solution read 7.0.
We are looking forward to more healthy plants!! 
New seeds were added today!! After harvesting numerous times we wanted to make sure new plants were beginning to grow! Our plants seem to be doing great! The PH was too high again so we switched out the solution for a new mix with a PH reading of 7.0.
Wednesday April 10th. Our lettuce is doing great!! We harvested our lettuce again! The leaves look terrific and they are a decent size. The PH level was too high. It was 7.9 so we switched out the nutrient solution with a new mix which read 6.9.
Today the PH level read 8.4 which was too high! We switched out the water for a new mixture that had a PH level of 7.3 The plants continue to look healthy and are very large! Today we harvested some of our lettuce leaves to allow more space for more lettuce to grow!
Our plants looked healthy but we were unable to take a PH reading due to the Industry Tour field trip.
By now our plants are about 2-3 inches tall. After the long spring break our water culture system was nearly out of water. Luckily our plants had long roots that they were still getting water and didn’t dry up. The existing nutrient solution had a PH of 7.8. We added a new nutrient solution with a PH of 6.7.
