That sounds fine. Thank you, Pat. :) I'll probably get the tiny ones (can't remember if it's called a pygmy or a dwarf with cories...).
I just realized/remembered, though, my substrate is a relatively large gravel. I'd guess probably a centimeter big, give or take a few smaller and larger ones. Will this be problematic since they're bottom dwellers?
“Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.” - Albert Einstein