My old breeding pair of oscars used to savage my hand if I put it in, they had teeth and knew how to use them.
my current one eyed oscar is very interactive, but it takes him a good 30 seconds to realise im there, cause he has a blind side. My chocolate cichlid however is probably the most interactive cichlid I have along with my Champsochromis caeruleus (looks like the african version of a pike cichlid)
other than that the most personable fish you could keep would be either Puffers, or things like lungfish, large catfish etc
my current one eyed oscar is very interactive, but it takes him a good 30 seconds to realise im there, cause he has a blind side. My chocolate cichlid however is probably the most interactive cichlid I have along with my Champsochromis caeruleus (looks like the african version of a pike cichlid)
other than that the most personable fish you could keep would be either Puffers, or things like lungfish, large catfish etc