bottom leaves dying first

OK so I'm at a lose. I thought it was over watering so I lowered the water in my containers so only the roots are in the water not the rock wool. Then a cal/Mag deficiency so I added more. Then I thought phosphorous deficiency, so I added more. These guys are not responding..

Hey everyone, so I started my first grow with some easy autoflowers. I planted 2 seeds (after they germinated) at the same time, same seed, but one seems to be growing a lot slower than the other and now the bottom leaves are starting to die. first the cotyledons died, then the first true leaves...

First time grower here. I water my plants every time I see the top soil dry. I also use nutrients every couple days. Any tips on why my bottom leaves may be dying? Any feedback helps!

First time grower here. Does anyone know why my bottom leaves might be dying? Also the tips on most of my leaves are turning yellow. My plants aren't doing too bad, just the bottom leaves are struggling. Let me know if you can help!

does anyone know why my bottom leaves might be turning yellow? Maybe nitrogen? Let me know if you have any tips!

Hey everyone or a person who might know what is wrong with many of my autos yellowing & rough marked up leaves at bottom. Im afraid it spider mites but dont see webs or mites. i have bad vision. But it looks eatin up a bit rough but ususally does not turn lacy. More of a Yellowing. Here are...

Hello... My ladies are looking rough. They have been fine. NNow they look sick and are dying. I use hydroguard with t8 fixture. This is the first time this has happened. Id like to fix it before I lose all of them. Thanks in advance