Video: Weird Behaviour? Are they fighting? re: Synodontis Lucipinnis

[BrownBullhead]

What is this behaviour my Synodontis Lucipinnis (a.k.a. "Dwarf Petricola") are doing here? Are they fighting? I have about 20 of these guys in my 150-gallon. All are approximately two inches total length each. I've lost about 5 in the last week… where at first I thought it may have been due to my "overhaul" of my tank (see http://www.myfishtank.net/forum/rat...-video-new-tahitian-moon-substrate-rocks.html) I am now wondering if they are killing each other? Any feedback, Synodontis keepers?

Please watch my video clip at the below URL…

Video: Weird Behaviour? Are they fighting? re: Synodontis Lucipinnis (a.k.a. "Dwarf Petricola")

 

[mackdaddymoriau]

well im no expert man but it looks like they are under stress....or im wildly guessing they might be mating

 

[FishGeek]

I looks like territorial fighting to me.....but I might be wrong, as I dont know much on these guys. Your overhaul might have cause them to loose their territories and now they are just trying to clam them again. It could be the reasson for the loss or it could be due to stress because of the fighting.