red color

[bud69]

I'm a new grower, and my plant recently started having veins of red coming through the stem, and it's spreading so that now it's reached out to the base of all the leaves as well. I don't have much to work with, so I've been watering 2-3 times a week with reverse-osmosis water, and once every other week I add a little Miracle Gro. It's in a Topsy-Turvy kind of hanging planter, and is about 7 weeks old from seed. Prior to this, it had been growing great and healthy. I haven't been monitoring pH or nitrogen or anything ... just taking it one step at a time. Any suggestions???