Hey all. I've just started noticing some leaves curling upwards and brown blotches developing on one of my plants. It's mainly affecting the biggest plant but I can see small signs that it's moving to the others too. I'm at 38 days of flowering now and at first I assumed it was a magnesium deficiency but the red stems are starting to make me lean more towards potassium deficiency.

Just to double check my PH I went and bought a aquarium PH test kit and it was dead on 6.2. Yesterday I watered with some epsom salts mixed in water. Today I think I'll take the plants outside and flood the hell out of them with some water.

Anybody have any other ideas? A quick reply would be appreciated.

Thanks ahead of time and here are some pics. One pic is just to show the purple stem on one of the plants.

Laterz
Sativagrowin Reviewed by Sativagrowin on . Any advice? Hey all. I've just started noticing some leaves curling upwards and brown blotches developing on one of my plants. It's mainly affecting the biggest plant but I can see small signs that it's moving to the others too. I'm at 38 days of flowering now and at first I assumed it was a magnesium deficiency but the red stems are starting to make me lean more towards potassium deficiency. Just to double check my PH I went and bought a aquarium PH test kit and it was dead on 6.2. Yesterday I watered Rating: 5