BigB_OGanswered grow question 3y ago Hey jo, everything will be fine, here's the thing, the brown dying of the fan leaves is not pretty but okay. Please remove all the sick leaves. Then please flush them. Try it on the ones that look the sickest first. Please check all the undersides of the leaves. Don't catch something yourself. BioBizz can sometimes be too strong. I've only been using Plagron for years. It maintains the harmony, but if you haven't had any issues with BioBizz so far, then keep using it. What does the pH value say? Are the dying leaves crumbly and dry? Check with the flushing and how often you water. When flushing, it's important to run plenty of water through until the soup at the bottom gets lighter. When watering, make sure to let the plants dry out a bit more before watering again. You can compensate for dryness, but too much and too long of moisture leads to root rot... If you have any questions, just write.