Hey everyone i have 2 different strains growing right now and they are about a week into flowerings. Approximatly 4 days ago i noticed that on my train wreck that some of the branches coming off the main stalk going to the leaves are turning a reddish purple color and is starting to spread into the main stalk. Just trying to figure out if this is a major problem or not and what i can do to fix it. Thanks for all the help everyone on this site has always been great with their advice.