I just upgraded to a 20g tank from a 10g.
I have two bronze corys already but would really like more of some type of cory since they are might favorite type of fish. I know they should be in a minimum group of 3 but when I first started out I just bought the two and they have been doing great for a year. They are very social and buzz around the tank all the time.
So, should I add just one more bronze cory? I would really like to maybe add two of another cory if possible but I'm not sure if different species would be the best choice or cause problems for my current corys???