Over several years I have cultivated a frogspawn tree as the center piece of my tank. It has thrived and looked beautiful until one day one of the heads started bleaching. It has spread from head to head util i decided to remove some of the branches and see if I could figure out what was going on. Some of the branches have a grey slimy film and some don’t. I’m not sure which of the 2 is normal or even if this would be the cause. I’ve included some pics to give you an idea of the dismantled tree and some of the branches. Any help would be greatly appreciated
