help! plants leaves are dieing

My PPP plant is in its 3rd week of flowering. The leaves are starting to die from the bottom of hte plant up. They start to turn yellwo then they shrivle up turn brown and die. I Have good lighting, and im giving them foxfarm tiger bloom nutrients. any advice? thanks

Sometimes when plants have outgrown their space they will start dying from the bottom and work its way up.. could be heat issue.. could be ph... could be nute issue.. could be a lot of things dude. need pics...

if it has out grown its space it could be possible (its in an Aerogarden) will it eventually die? or will it just lose some leaves?