HELP! Yellowing leaves

[Imawordsmith]

I recently moved my plant from a makeshift grow tent to a tent I purchased. I also switched from using distilled water to using filtered tap water. I also installed an inline fan and carbon scrubber. Not sure if any of these things are what is causing some of the leaves to turn yellow or not. Any guidance would be greatly appreciated. Thanks.

 

[SoOrbudgal]

Food and light would help basics of how to grow weed.

 

[Smokesteve]

What is the soil what, light and what are you feeding them? Distilled water is not what I have ever used.