Well, continued the slow gravel removal from the 60 gallon.
Two deaths in the back tank. I'd noticed the smallest of the three clowns back there had been skittish and hiding in the rock or the castle lately. Today when I came home from work, "he" was dead on the sand at the back of the tank with most of his fins chewed off. When I picked up the castle to make the body easier to net, the lawnmower blenny fell out, dead.
Really, I think that's it for that tank. I think the CUC made the presumed corpse of the yellow watchman goby vanish. Never have found it dead or alive since I restarted that tank.