Kindbudzanswered grow question 7 years ago It appears as though you are having a Ph issue. Adjust your ph to be around 6.5. This would be the most ideal range for your plant growing in soil. No need to add any nutrients at this stage. Water with roughly 1-2 cups of water at most and wait until the soil is thoroughly dry. The high temperatures as well are potentially causing some issues. This is why you are seeing some of the leaf tips curl upwards. I see that your TDS are at around 200. If you are not adding any nutrients I would suggest trying to use Reverse Osmosis water. This will help prevent nutrient lockout in the future and you can supplement any nutrients you need yourself. Hope this helps and good luck!