sick leaves

Howdy! I have been growing some Blackberry and lemon autos, and recently I noticed some strange growths on them. I was wondering if the growth was from a Sulfur Toxicity from well water with a high trace of sulfur in it. Here's my PH and ppm of my tap/well water and some pics of the plants in...

I've been growing two autoflower Bruce Banners in soil and the older one is just reaching the 10 week mark today, however it seems to be yellowing (and it a bizzare manner) very fast and I am worried it will not be ready by the time all of the leaves die. About two weeks ago it had a lot of...

Some weeks ago I started having some issues with this plant with leaves getting sick (see pictures of bottom ones nearly dead). Until some weeks ago I was giving plain tap water not adjusting pH, but now I usually water them with a mix of mineral water pH 6 and tap water pH 8 to get pH 6,5 on...