my first growlog

sorry to here that this attempt failed but here is some things that you might want to read up on before your next grow.
1.is nutrients that's why those leaves were turning yellow because they didn't have enough
2. airflow might want to get a 9 in box fan because the perlite in you medium is burning
3. the curling of your leaves is also a sign of a deficiency most likely phosphorus since it was in flowering
if you have the money and are serious about growing then I would advice that you read the cannabis grow bible it is really the only book you will need