one month

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!

Yep, I'm back again... boy, I didn't expect to have this many issues right off that bat, but I guess I am new haha. So, I seem to have corrected all of my other issues now, and trimmed off the bottom dead leaves (shown in the pictures) this afternoon right before watering. But it now appears...