So just noticed today that where the fan leaves start from the stem, it's turning kinda pink. Not severely. But just curious. Today is the warmest temperature the plants have had to deal with so far. Wondering if that could be it? Temps around 86 or so right now. Its 90 degrees out so not much I can do. They're in a double stacked Rubbermaid grow box. Five 100 watt cfls. 3 at 2700k and 2 at 6500k. Been on 12/12 for a week and a half or so. And using dyna-gro bloom nutrients. Thanks!