I wrote a post some time ago about my cories spawning in my 55. I managed to hatch out a couple dozen fry in a 20 high, and I have grown them out to about 3/4" for the largest.
Back in the 55, though, they're going at it like teenagers who found dad's viagra. My tank gets spattered with eggs twice a week. Amazing. I've been letting be what will be with those, and I haven't seen any baby cories yet.
However, the other night, I found that my seldom seen Bristlenosed plecos have been doing the nasty as well. I've already pulled out 5 fry to the cory grow out tank, and I can see another three hanging out by the waterline right now. Very happy about this.