Updates after being away over the holidays. The good news is that I don't see any worms hanging out of my fish. It would appear that the fenbendazole worked. I need to re-treat the tank soon (it's recommended that you re-treat after two weeks) to kill any larvae that have re-infected the fish. Still, it looks good.
On the other hand, I lost a lot of fish. I came home last night to a house that stank of rotting fish. In the main tank, I lost both angels, my fighter, and all of my neons. I lost at least one Macropodus, probably more. I haven't determined what happened to the corys and the kuhli loaches - I saw one kuhli loach, all three of the panda corys, and several of the others. I see one Otocinclus, but I'm not sure about the second one. The water was horrible when I got home - I'm impressed that any fish survived such polluted water.
In the plant tank, I see a lot of shrimp, two Otocinclus and a few of the pygmy corys. I haven't seen many pygmy corys,; I'm hopeful, but concerned. The tank had very heavy algal growth - probably a consequence of having the lights on 24 hours a day for almost two weeks.
I haven't taken a good look at the Macropodus tank. There are at least a dozen fish in there, but it's very messy and overgrown. I haven't yet tried to tackle that one.