Lois, I have been in touch off and on with Diane (c'est ma) on another site and told here about your green banded gobies. She related this story about hers and I though you might be interested.
"Henry, how great to hear about more gbgs! So glad you're continuing to tout them.
Let me tell you briefly about the bizarre ends of my two. After nearly 3 years of continuous broods, there was a gap. I noticed the female's colors were getting more vibrant, and that one of her leading dorsal fin spines might be getting longer...Within two months of her last brood, it was obvious that "she" was now a "he." ( I don't think that's supposed to happen in protogynous hermaphrodites until something happens to the dominant male. In my case, I think it's because my fish had always been inverse in size compared to how they're supposed to be; the male was smaller rather than bigger. And it was probably an age thing as well.) As you can imagine, that didn't go over well. The new male kept trying to fight with the old male, while the latter did not seem to notice the change and continued to try everything w/in his bag of tricks to lure "her" back into breeding. Throughout this time the new male did not appear to eat much if at all, and in 2 months he was dead.
I felt bad, of course, but was slightly comforted that the original male, the fish I'd had the longest, reverted to interacting with me (noticing me watching him, coming out front when I was by the tank, etc.) the way he had before I'd introduced the erstwhile female. Then I dismantled the new 15g tank, and when the recipients of all the livestock had left I found a few odds & ends that had been overlooked. Among them were two tiny mini-carpet anemones, maybe nickel-sized, which I dropped into the 5.5g. I suppose you can guess where this is going...two days later I found my poor little gbg stuck on an anemone. I immediately pulled him off and put him in a hospital tank, but it was too late. He died 11 months after the "female," five years after I first got him. Jeez was that depressing.
Anyway, that's the rest of the story.
--Diane"