A little info:
250w HPS light, and two 48" T8 fluoro tubes as side lighting, and two 100w equivalent CFL bulbs. (lol)

light cycle is 18/6

I let the PH drift between 5.5-6.1, currently it around 5.7. water temp 68 degrees

temperature always around 72-75 degrees, RH 30-45%
Illusion Reviewed by Illusion on . First grow Recirculating DWC this grow journal starts off at 37 days into veg. finally got the three babies into the system after a 4 day struggle with leaks they've been flushed with r/o water for 3 days. before they were flushed, i had the ppm of the reservoir up to about 450, cal-mag and GH's MaxiGrow. I noticed slight burning of the tips. Unsure if it's from high ppm, or heat stress. Decided I will reintroduce nutrients *slowly* I should only use cal-mag when i notice signs of deficiency, right? Rating: 5