Torn lip

[nano cichlids]

Sounds like a tug of war

yep thats pretty much it they shake a bit more of course

 

[mcybyk]

kay-bee - what an awesome picture. Are they yours?

BTW, the red top appears to be doing o.k.

 

[kay-bee]

Yes, those are mine (male zebra chilumba's, the species in my avatar; interestingly they transitioned into 'submissive' purple-lish coloration during their 'test of strength'). Quite audible too, sounded like someone biting their nails. Neither male was harmed.