I'm not sure why you would not want chaeto. It is probably the most common amonghobbiests. And it makes a great pod home. Not attractive in display though. The tree will look fine in the display or you can put it in the media area if you prefer. As long as it has light and flow it will grow. What is the clip for? I mean it is for feeding things like nori. Why would you need it for macros? And I don't mind questions at all. Keep em comin