It has grown, probably doubled in size (like everything else in my tank). Although since its bubbletips has vanished it looks smaller then it really is.
I had another one Bob, it just decided that it was too good for me and my tanks and headed off to a better place

.
I guess its probably okay as it is, I am just worried that something is preventing it, or making it unhappy which is why it refuses to go back to being a bubbletip.
Thanks!