Mephisto Double Grape and 3 Bears OG

Week of 3/12 to 3/18 Wow these ladies are growing up! They all 2x-3x in the last week. Gave cal mag nutrients and water earlier in the week once. Trying to do less this time around, fewer waterings, less nutes. 3/14 watered at 6.5 with 3 ML of cal mag for about 2 gallons of water. Bottle says 3-5 per gallon so I did half of the low end dose. Didn’t need all the water so there was decent amount of runoff. The rest of the days, I was monitoring temp. Gets cold at night. But that might be OK with autos, plus the lights on 20 hrs so should be okay. Light is at about 40% power.