oscar and bicher behavior

Hello Everyone, I have recently got a 75g/280l tank and I would love to put a Oscar in it. Would it be ok to put a small Oscar in with 4 firemouth cichlids and 2 pictus catfish Thank you all so much

My long finned oscar has damage to his right fin. Sorry best picture I could get. Just did a water change. Conditions are all optimal. He has energy and appetite but is very pale. I dosed with pimafix as it looked to me like possible fungal infection. Not sure the cause but possibly my Bichir...

Guys in your opinion can we make a new breed of Oscars from selective breeding of them, Guys let me know you ideas and I some are suitable then let's give it a try. Is that legal to creat a new strain of cichlid at your fishroom or do you need some kind of permits

Okay so I have a dinosaur bicher and an Oscar in a tank together and the bicher constantly follows the oscar around swimming side by side connected to him kinda rubbing his head on him ha. Both fish seem to be healthy and it doesn't seem to bother the oscar as he does not try and I swim away...