Well, things must be going good in the 75g tank, as my three Talbot Damsels spawned over the weekend!
Now, I am not sure which are males and which are females. I have three, and one has always lived in a cave in the live rock. This weekend, that one got a bluish/grey patch on the top base of his tail (I am suspecting this is the female) , and starting courtship dances with one of the others. They would then both zip into the cave (which up to this point, she never allowed anyone else in the cave). Then it would repeat with the other damsel.
Now, the other two damsels (the supposed males) have taken to digging holes in the sand at opposite ends of the tank.
I took a flashlight and can see eggs lining the walls in the cave, and the (supposed) female in there fanning them.
I don't expect the offspring to survive, as I don't have the time to try and raise them outside the big tank. But cool non-the-less.