spotfin
thank you greatly for this! You have seen them quarrel in the beginning of the last video, right? Louie the lungfish doesn't pay the eels any mind it seems whatsoever and his bite would be real big and nasty. The hi fin shark is one of the shyest fish. There is no one else in the tank. So that, plus them bickering, led me to assume it must be them doing it to each other, no?