I think you're right mebbid. It's surely bacterial. Probably secondary to the camallanus. My big black angel looked much better after using Pimafix and doing a big water change last night The QT one is still not eating, but I have her in kanaplex and metronidazole. She at least Unclamped. Weird...I noticed holes in the sides of the Bolivian rams (both of them) right beside their eyes. I keep going back to hole-in-the-head or lateral line, but, they've eaten metronidazole food from angels plus, twice a day for 6 days. I took the only one who wouldn't eat out. I understand that I have to fix the primary issue (camallanus), but they keep getting other symptoms. It's extremely frustrating! And, this morning, my gold lace angel didn't eat. I just wish I could hurry up and receive the levamisole. But, I seriously don't know what I'll do if they have further issues. I keep checking different fish disease charts, but so many symptoms are the same. So, to summarize::
ANGELFISH: started having scrapes/missing scales a week ago. One of my big black angels started hiding in the castle, stopped eating, turned more brown than black, and sat in the dark in the castle nose up, tail pointed down until I put her in QT. the other big black showed patches on both sides of his head below dorsal fin...that are no longer visible after a night in Pimafix, and a water change. The gold veil stopped eating (after 6 days of medicated food, 3 days of melafix, and 1 night of Pimafix. It's beathing heavy, hiding, and looks like its face is caving in between the eyes (malnutrition from not eating?)
Rams: the males are the ones with visible camallanus worms. They are much meaner, especially at meal time, but the DO eat. Yesterday, I did a salt/methylne blue bath on the Bolivian, because I noticed a hole beside/behind each eye, and his face/gills turned a green color. The blue ram male is very pale with stress marks, and sits on top of the bubble wall.
I did add vita-chem and aquarium salt to the tank with the water change. I pray they don't mess with my ph or gh. Anyone who has saved fish with these symptoms....please chime in. I really will be devastated to lose any of my fish! Thanks, and sorry for the long post.