Hi cory lovers, I have been given 3 corys (I think they are pepper from what I have looked up) from what I have read these guys should be kept in a group of about 6, however the 3 I have are hardly ever together? I dont know whether they keep just loosing each other or they are just not "groupy" (cant think of a better word!). They are in a planted 300l tank with gourami's, angels, few tetra and pictus cats. Should I get 3 more?