I don't know if it's unusual or not but all my green terrors (past and present) have been in tanks with smaller fish and I've had no problems.
OB peacock in with my SB flowerhorn and blood parrot - all like eachother for the most part, the OB was bought as a dither for the flowerhorn to begin with. They won't allow any new fish in the tank either - not that there's room.
I used to have a longfin albino tiger oscar in a community tank with platies and he never bothered them, he did however eat a puffer that fell/escaped a quaratine and the puffer puffed after being swallowed and both died.
Some kind of hybrid alhi african in with my south american cichlids years ago, all got along fine.
OB peacock in with my SB flowerhorn and blood parrot - all like eachother for the most part, the OB was bought as a dither for the flowerhorn to begin with. They won't allow any new fish in the tank either - not that there's room.
I used to have a longfin albino tiger oscar in a community tank with platies and he never bothered them, he did however eat a puffer that fell/escaped a quaratine and the puffer puffed after being swallowed and both died.
Some kind of hybrid alhi african in with my south american cichlids years ago, all got along fine.

