Corys are schooling fish, so they are more comfortable with their own species. I've kept tanks with mulitple groups of different corys and they tend to hang in specific groups. In my 180, I had aneaus, metae, paleatus and panda, in groups of 5-10 of each. They'll swim in specific groups, mingle together to eat or investigate things and them split up again into their specific groups. Very cool behaviour and interesting to watch.
Overall, the behavior of different species is pretty similar, but as mentioned above, they tend to hang with others of their own species given the choice. If it were me, I'd get all the same species unless I was getting more than 10 or so. (Then I'd probably do half and half)
ive got 4 differet kinds in have in my planted tank they all get along well
emerald(3), peppered(5), false julii(1), swartzi(1)
the false julii and the swartzi are best buds.. always hanging out together. the roam the whole tank
the emeralds also stick together.. not all that active but they do have their 3 "spots"
the peppereds are under a year old and hang out with EVERYONE else in the tank (pleco, otos, congo tetras, swordtail,..... pbass) they are the most active but since they are still young i dont know if they will stay this way or not..
im more than aware that the pbass need out... so far no one can fit in their mouths.. though im sure ill start losing otos in a week or 2.. they have their own tank
The only ones I've personally kept are paleatus (peppered) but my next SA planted tank is going to have sterbai and probably panda if the tank is large enough for 2 species
I know this thread is a little old, but.
I got some diferent corys living together very fine, swimming and eating together like just one specie.
I got 2 albino (not sure about what species, but I guess aeneus), 1 aeneus, 2 barbatus, 1 schwartzy, 2 wild puntactus.
Corys do like the comany of others and all species will mix very well, ive always wanted a nice sized tank with a group of 20-25 fish cracking little cats, you could always add a few brochis.
