After spending several weeks wrestling with nutrient lock out and noticing that this Blue Dream strain literally cant get enough nitrogen, I've decided to switch my 3 part nutrients from General Hydroponics Flora Series to Advanced Nutrients pH Perfect 3 part nutes. After 2 feedings, I've noticed the plants are starting to respond to the increased Nitrogen. I'll be finishing out this grow with Advanced Nutrients. I will say I was somewhat skeptical of the auto pH balancing, but it does work. My water is around 6.8 - 7.0 out of the tap and this dropped it right into the sweet spot. Kudos! Still have 2-3 weeks to go so I'll be monitoring the overall health of the plants based on the new nutrients. It's too early to say for sure, but I think I'll be dropping General Hydroponics and switching all of my nutrients over to Advanced Nutrients for future grows.