is this normal?

[LAL]

my plants are 31 days into flower, they are looking very healthy, and really starting to pack on weight, however a few random leaves towards the bottom of each plant have yellowed completely and just fallen off, i know that this will happen eventually, because im using a superbloom fertilzer with little nitrogen, but i was wondering if this was happening too early???
also pretty much all of the branches have turned a deep red, shall i feed my plants with a little nitro feed, or is this all normal for day 31 flowering????
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[asci]

yeah I'd get some nitrogen in the mix. It's about right (31 days) if you are using a low N in your nutrient mix. Happened on my first grow in the same sort of time frame.. :)

[LAL]

thanx for the double reply asci, given em a feed.... cheers mate

[slim_tim]

Yeah, it sounds like N def to me,

For the red stems i'd give your plants a small dose of epsom salts aswell.