Wow, when a system decides to cycle it really cycles. Nitrates above the 160ppm level. Nitrites at 0. Ammonia is at .5. PH at 7. I couldn't be more happy. I am still going to go slowly with the plants. I have spinach, broccoli and lettuce planted to see how the growth goes. My solar panel is in place and I have the air pump and a light on that, the pump and grow lights on house power.