DIY Quantum Board ScrOG

This is my first grow. I will be growing Pineapple Chunk by Barney's Farm from seed. I plan to copy LBH's famous ScrOG Tutorial. 13/10/18 - Planted 5 seeds in Root It propagation sponges. The sponges were planted straight into 1L air pots into a 50/50 coco/perlite mix which was watered with 0.5 EC, pH 5.9 water. Professor's Nutrients has a starter soak with an EC of 0.5. Instead of buying the started soak I mixed up a solution of other Professor's Nutrients products to the same EC. I have read different opinions on whether or not to provide any nutrients in the first couple of weeks. I decided to give them a weak nutrient solution, tune in to find out how it goes. 17/10/18 - Day 1 - All seeds have sprouted. One of the seeds (plant 3) is lagging behind the other 4. See day 1 photos above. 19/10/18 - Day 3 - 4 out of 5 seedlings have their first set of true leaves. Plant 3 is still lagging behind. My setup consists of the following: Grow Room The grow room is a total of 2.1m (7 ft) x 1.5m (5 ft). The grow space measures 1.2m (4 ft) x 1.5m (5 ft). The room has been painted matte white. Lighting 4 lighting fixtures, each with 2 x QB288 v2 3000K quantum boards. Each lighting fixture is capable of producing 275 watts. I am currently running 2 of the lighting fixtures at 125 watts each. I will monitor how the seedlings are reacting to the light and adjust the distance between the light and the canopy accordingly. Ventilation I am running a 150mm (6") Can Fan Iso-Max silenced fan with a carbon filter. Water Tank I have a 200L water tank. I mixed up 50L of solution to start with. I have an aquarium pump set up inside the tank. The pump is plumbed up with 19mm irrigation hose and controlled with a digital timer. I am running the pump for 3 mintues per feeding using 2 x 8L/hr drippers per small air pot. I will use hydro halos for the larger pots. Waste Water A platform has been installed approximately 250mm (10") off the floor to allow the installation of waste water tanks. All pots are sitting on Rhisostands which have been plumbed into 2 x 80L low profile plastic storage containers. I plumbed some irrigation hose with a tap and a 12mm snap on hose fitting into the tanks so they can be manually drained when required. Pots I will be using 1L (0.3 gallon) air pots for the first 2 weeks before transplanting into 9.2L (2.4 gallon) air pots. I am growing 5 seeds. At 2 weeks old I will choose the 4 best seedlings to transplant into the larger pots. Grow Medium/Method I will be using 50/50 coco/perlitefor the 1L pots and 70/30 coco/perlite for the 9.2L pots. I will be watering until 20% of the water drains to waste.