should i stop feeding them?

swantip said:

they are bagseeds,sativa dominant. the plant on the left has some weeks to go as there are 30% clear trichs and many white hairs. the one on the right has about 15% clear, but i was thinking that they have about 2-3 weeks more... how fast do the trichomes change? i am a bit worried about the leaves,most of them are yellowing and i dont know if the plants can survive for much...

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