First time posting on the forums ! This is my first hydroponic setup. Only did 3 grows in soil. I do have a couple questions 6x6 grow tent 4x Viparspectra 600w (274w draw) Active Aqua 12 site bucket system General hydroponics flora trio All fans with proper airflow 55 Gallon Reservoir Strain is Cherry Fuel from TRH Seeds which is Cherry pie x Scotts OG The seedlings are all happy except for one mainly. The tap water in this area is about 45 PPM which is amazing. These seedlings are 11 days since sprout and ive only been giving them 275 ppm. I just changed water to 375 ppm two days ago. This one did not like the nutrients. Since my tap water is 45 ppm i believed it was a calcium defiency. I did not feed them calmag for the first week. I also found out i was following a nutrient chart for coco coir, and wasnt giving enough bloom. I then drained reservoir and used proper nutrients and included calmag this time. Not sure which fixed the problem but the new growth is looking good. All other seedlings are healthy. I am running 4x Viparspectras and was wondering if it is okay to use all 4 panels in a 5x5 space? In previous grows i used one panel for a 2.5x2.5 or 3x3. What are u other ebb and flow growers yielding ?