Glueberry... Why not GorillaBlue?

Ok, so I started noticing that this Glueberry just wasn't happy. I thought it was the lights at first, so I did some research. I thought maybe it was too much light since the last grow I just put the seedlings in a window. I looked up recommended light levels and everything pointed to about 7,000 lumens, so I bought a light meter and some dimmers for my Quantum Boards. I was at a whopping 23,000 lumens without the dimmers and the lights at 24". After putting on the dimmers I was able to get them both down to 7,000 lumens without a problem. By the end of week 3 my plan is to get up to 10,000 lumens. This helped but ultimately the leaves were still drooping and I wasn't seeing much growth. I did some more research and figured it was possible I was over watering, so I stopped watering the plant for almost the entire week. I was super nervous about the roots drying out too much and losing the plant. Sure enough after 4 days I found the plant no longer drooping. Like a dummy I was over watering. I added more water after drying it out, but this time it was just enough to get the coco moist. I needed to ease it back into full watering. The coco itself still has the Oregonism XL that I fed early on, so I haven't added anything additional beyond purified water. I normally use my RODI water but I didn't want to replace the filters from my previous grow. Instead I used Walgreens brand Nice Purified water. The PH is close to 6 and the TDS is 003, which is lower than my current RODI levels. I will probably keep using it for the first few weeks and gradually shift the plants over to my RODI water.