I've posted lately about an algae eater. But something else has caught my eye in my cichlid tank. I have a 29 gallon tank with three red zebras and two yellow tailed violet cichlids. Sorry if this is repetitive to anyone. Well, every once in awhile my male zebra and a female zebra will lock mouths and hold on to each other for awhile. I can't tell if they are fighting or if this is some kind of loving behavior. Any ideas?? 