Purple Bud & Sensi Skunk Autos

Plants have really grown, especially the central colas. Purple buds are getting fat and sensi skunk is becoming abundant. Seen a calcium deficiency on SS and its has struggled a bit with wilting. Tested the EC and PH of the soil and that seems fine. Speaking to an expert there is low levels of Ca in the local water. Added mag-cal (also has nitrogen) and the plant seems to have perked up and improved colour. Temp range 20-26C. Top end of temp range this week because closed 1 of 2 intake vents due to cold dark period and wanted the air to be drawn through the heater. Humidity range 40-50%. Maintained low humidity during light period and between 52-57% during dark due to cold and wet weather typically at 69%, heater seems to be doing the trick. Cal-Mag has increased EC to 1.5 which is above range of 0.8-1.2, consider reducing this within the range next week. Given a tip that the hesi phosphorous is a supplement so should be added every second water to avoid burning the tips. Monitor this.