I have been growing this R. gorgonias now for 18 months. I have kept the plant in low humidity. It gets good air circulation. The temperature range is has been between 20c - 30c. This summer it went through a few days where it was 33c. The plant is sitting in a tray but I allow the water to dry up before watering again.
The growth seems normal from reading about other growers plants. It has flowered twice, once producing seed. Yet since I have been cultivating it the plant has developed yellow tips. Newly formed leaves quickly turn yellow on the tip. I have seen yellow tips in other growers plants but they are generally on the old leaves.
I am wondering what I can do better. The photo below is a week old.