Hi everyone, I have a beginner question. My plants were showing signs of distress and i was able to identify the cause as nitrogen toxicity. So, I flushed out the reservoirs and will use a weaker nute strength to see if the new growth recovers. However, I have a question: my tap water is pretty hard (0.9 EC), so would it be wiser to use RO water instead? I know RO usually isn't worth it, but my water is quite hard and I'm wondering if it's worth it to use RO. Thanks!