It is not only possible, I have 13 C hastatus as a colony in a 20 gallon tank. I still hold hope for them but so far they are just swimming around like they own the place. They actually do own it for the last several months. I'm afraid my water is really not ideal for cories though. I got the idea from a guy on planet catfish who does it with habrosus and with hastatus. In his case he was claiming breeding survival of about 50 or more per year of each.