Bloody Skunk Auto

This week flew by. Oct 10 - Watered about 1.5 L each Oct 14 - Watered 2 L each and added Voodoo Juice. Due to circumstances, I watered a day or two later than I would have liked, and I think my plants were a bit dehydrated. The leaves are showing some yellowing toward the edges and the older leaves are curling up a bit. I think it's signs of under-watering and either nutrient burn or PH too low. One problem fixed, just need to check PH before next watering.