yellow leaves.whats wrong?. Pics

My plants are between 1 an 2 weeks flowering, i think, im putting a picture of one of the buds along with the yellow leaves. but i went to check on them today and the bottom leaves of 2 plants are turning yellow.. whats goin on?

okay i was getting worried. other than the fact that thyre small b/c i planted them late.. they look alright, thanks

Good first try Problem one not enough light Problem two it looks like you have three in one pot. I grew outside when i was in jr high school until i was in college and the best places to grow outside is on a southern facing tree line good sun all spring.

actually that yellow fan leaf looks more like it was eaten by pests. its the only yellow leaf and its full of chomp chomp holes. try an organic pesticide fungicide like gsrden safe 3 in 1