Thx Creepy_Steeve for legendary tips

only one photo this week. The next one will be more provided. I replaced my 25w cfl bulb with my 250w HPS, my plants said 10x thank you. The plant in the center has only had one pair of leaves for 1 week. I thought she was dead but she's starting to grow back weird. -------------------------------------------------- ---------- Water: tap water (280ppm). I add 0.5g/L of Grow mineral powder to reach 500ppm and I adjust the ph to around 6 Daytime temperature: 28°C Night temperature: 21°C Humidity: 50%