I have 10 adult feather-fin synodontis in a 150 gallon with
a hugh piece of driftwood. They are comical fish, always
swimming upside down and trading positions under the
wood.
The dominate male of the tank has his own special place
in the corner with his own piece of wood... he sometimes
goes to mid water and hangs upsidedown enjoying life.
Adult fish have the most beautiful finage .... great fish.
Doomhed... the back flip sounds good