I have had a Kenya Tree for 4 monthes. It was doing great growing and dropping branches like crazy. The branches have hooked on and are growing all over and doing great. Out of no where it looks as if the original two main stalks that I bought and that propigated the rest of my tank have dies. They have shrunk and will not open for about 4 days now. Does this sound common? Is there a need to get it out of the tank or can I leave it in to see what happens?