Found part of the goby's little body this morning.
Fishing dead stuff out of my tank is not a good way to start my morning.
I have been dealing with all sorts of macro algae in my tank, likely due to having my lights on for 14-15 hours per day (I work 12 hours a day and I like to see my tank), and overfeeding (I fed twice a day and made sure my goby had plenty to eat so he wouldn't starve). So, now with the goby gone, I'm putting my clowns on a once-a-day feeding schedule, and I'm putting all my lights on a timer so they'll come on long after I've left for work and they'll go off a few hours after I've come home. I've also been using PhosBan to help with my algae war. The emerald crab hasn't been as helpful as I'd hoped--I've seen him bypass my bubble algae in favor of my coralline algae.
I think he's defective. And since he's been gorging himself on goby, he'll probably be useless for a while.