This winter I bought a juvenile Cichla Orinocensis at my local fish store. He is roughly 4.5 inches in length and will soon move from my smaller community tank to the 80 gal I am setting up in the living room.
Right now he is sharing his space in the community tank with a Koi or about the same size as him and a few goldfish. (The goldfish are large in size and he's not quite big enough to eat them yet...he still kills them pretty regularly and only two remain from the original
So anyway, feeding him has been a real pleasure from day 1. He is accustomed to a diet of small goldfish/minnows and beefheart-based food I made for him. He really enjoys the red frozen bits and the live fish, so that's fine and dandy. He's also in some sort of a competition with the Koi for whom will grab the meat first. Somehow, I feel like it helps keeping him active and interested.
In the 80 gal he will share his space with a 7 inches pleco. But I don't think the Koi will follow (as he is most likely going to end is a pond/basin at my parents). So, what would you advise I pair with him? A northern pike would be very flavorful, but I don't know how well they will tolerate each other. I also though of an oscar or a largemouth bass. If I get them of the roughly same size, will they cohabit?