Cape Grows OG Kush

We experienced very stable ph levels this week. I think this is partly due to the fact that i have been topping up the water with 4l of new solution. This gives the plants more time to adapt to the solution and thus cause fewer fluctuations. (Take note this is just an observation) We will be installing an extra light at the end of this week (marshydro ts2000w) to go with the marshydro FC 3000. The plant is currently 30 days old. There are 3 other OG kush plants in the tent, hence the need for extra light.