I have a kenya tree mounted above an opening in my rock work where a devils hand is growing. Once the devils hand gets high enough will these two sting each other? I am not sure how much pop either of them have.
You won't have to worry so much about stinging as you would chemical warfare. I had a kenya in my 38-gallon on the other side of the tank from some leathers and other softies. After consulting with Eric B on it, he said it was my kenya tree. It now lives in a larger tank where the chemicals can be better diluted than in a smaller one.