Safe to use Super Glue?

I use it for the aquarium...
 
you can use the super glue gel underwater. It does not have to be dry. I have glued coral polyps to rock with it underwater many times.
 
how do they attach corals with superglue when the glue needs air to dry and the corals need to be underwater all the time, sorry that confuses me
I remember hearing superglue is activated by water
so it bonds instantly to skin but takes forever to dry on its own
 
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