Hey man, I am very sorry to hear about your fish!!! My yellow tank is one of my most favorite fishes, right next to my black moore!!! It would be painful if s/he died, much less nine of them!!!
I wanted to add my three cents on super glue. Most people dont' realize this, but it was actually invented by the military as a means of closing open cuts and wounds in the field in the event of war and no hospital close by. It is still included in every first aide kit I saw in the military, and when I cut my finger off the emergency room doc
SUPER GLUED it back on, of all things, I was scared to death it was gonna fall back off, but turns out that it healed without even a noticable scar!!!
So with this said, the super glues that you buy today have changed chemically from the original glue, but "most" of these changed have actually been to make it less toxic. I've never used it in my fish tank, but I would be fairly willing to with a brand recommendation from someone who has used it. Anything that was designed to put on a cut I can't see being that much of a problem, haha.
So, that being said, sorry again about your fish man, words can't possibly express how badly that sucks.