3 weeks old. Rdwc with a chiller? Rez temp doesn't go above 68. PH stays at 5.8. Cutting edge solutions nutrients line. (The micro is red so I'm wondering if it's staining the root) hydroguard @ 2ml per gal. (added first when mixing all the nutrients; now I've read that isn't good for the bacteria?) Orca as well for beneficials