I got a black Molly and a dalmatian Molly on the 22nd, and today I bought another dalmatian Molly. I am a bit confused on the gender, because everything I find says something about males having a big dorsal fin and then a stick like anal fin, and the females have small dorsal fins and a seashell anal fin. So I am highly confused. Help on this?
Also, I've noticed that the bigger dal (more black) has been a little nippy towards my small one (more white) Should I be concerned about this? They're always wanting to be near each other, so I don't understand this either. The black Molly isn't very interested in either of these either, it liked my betta before I took her out. Now it just hangs by itself.