In the last 24-hours all three of my plants have started to show signs of blotchy/irregular colored leaves. When I touch the blotches they are crisp to the touch. I have a really cheap pH meter, and I've been feeding at 6.5 pH. Is this a pH issue?
Hi!
This kind of spot is indeed related to pH problems.
I would feed with a slightly lower pH.
Check your value in the soil.
How is the drainage after your watering?
Your light cycle is also set to 24/0; these are photoperiod plants, so they need to continue for a long time.
Reduce this to 20/4 or 18/6.
Every plant needs darkness to develop properly.
🌱
I just tested the pH of the soil and it was ~7.1-7.2. I followed your suggestion and flushed each plant with 4 liters of water pH'd to 6.0. Runoff now sitting at ~6.5-6.6 pH. Thanks again for your help!
I had a feeling. I will need to buy a new pH meter before my next feeding. I'll do a flush at a lower pH next watering and check the runoff. I haven't been watering enough to get an accurate runoff reading. I'll also turn my lights to a 20/4 schedule. Thanks for your input - it's really appreciated!