Pablo Escobar first time grower

sooo couple days ago I lowered my light, I flushed with flash clean and I have done my first feeding of modified ratios for flowering The smaller plant defiantly isn't going as nice as the other one, weird because its from the same seed pack and has gotten exactly what the other plant has got, obviously no 2 plants are identical but still annoying :D winter is coming here now so temps are dropping under 20 degree Celsius . Ive also heard that I must feed less in lower temperatures so I'm using about 70% of recommended dosage and I'm keeping a close eye on my EC levels going in and also the EC of my runoff to make sure there is no extra salt build up . plants seem happy :)