dark spots on leaf w/ pics please help

I'm in about the 4th week of flowering and all of a sudden these dark spots appeared earlier this morning. I am thinking it might be some kind of nutrient lockout because I have been watering with tap water, but it's ph is just below 7. Any help would be much appreciated. Thanks.

these are the pictures, I messed up the first time with uploading them

I am actually having the same problem. Hope someone knows what it is.

im not sure what it is....but i would flush the shit outta them with distilled and p.hed water....and cut that shit off of your plants

I think it looks like a calcium deficiency.


What exactly is your PH and are you soil or hydro? What nutes and when?


Maybe a seasoned member with more experiance will chime in soon.

spandy said:

I think it looks like a calcium deficiency.


What exactly is your PH and are you soil or hydro? What nutes and when?

Click to expand...

its a soil grow, and the soil ph is about 6.8-6.9 very consistently. I have been using miracle grow water soluble nutrients. but I have only used nutes twice because my other plant got nute burn so it was been just tap water (ph'd) for the past 2 and a half weeks.

i flushed the plant today hopefully that will work, but I am still curious as to what the problem was b/c I have not seen any pictures of plant issues that look like this plant does