What's causing this?

[damanc]

Honestly I didn't think I was suppose to do that but I do end up with runoff at least once every 2 weeks but it's not much.

[damanc]

Thanks for the reply.

1. I will have to check the PH. It's been awhile since I checked it but last time I did it was about 6.5 will definitely...

[damanc]

I wasn't using Calmag but I just started using it yesterday. I'm hoping that's all it is.

[damanc]

I've had this problem for a couple weeks but I'm growing AK-47 and the leaves are turning yellow through the bottom half of the plant. There's also some...