SA/ CA American Cichlid suggestion for 300 G

[WannabeBigfishKeeper]

Hello Everyone,
This is my first post , so apologies for the mistakes. My 300g tank has a 7yo 8inch parrot, 2 4-5inch buttekoferi, 2 6inch tinfoil barb, 1 5inch severum, 1 7 inch African knife fish. Want to add 2 big cichlids, confused between peacock bass, Red Devil , Jaguar or veija syns.
Tried to add a 6 inch Oscar , that was beaten up. Also tried to add a 5 inch green terror that was killed mostly by the Severum and butterkoferi.

Wanted to know which might be the best match.

 

[danotaylor]

Any time you add a single fish to an established hierarchy it's gonna get targeted and beaten, even in a big tank.
A couple of things you can try if you add only 2 fish;
- buy them as big, or slightly bigger than the existing fish
- remove all the tanks décor (territories)
- add them at the same time, at lights out, and leave the lights out for a few days
- Feed the tank as normal during the day, but leave the lights out, just ambient lighting
- If all is well after a few days, return the décor.

 

[WannabeBigfishKeeper]

Any time you add a single fish to an established hierarchy it's gonna get targeted and beaten, even in a big tank.
A couple of things you can try if you add only 2 fish;
- buy them as big, or slightly bigger than the existing fish
- remove all the tanks décor (territories)
- add them at the same time, at lights out, and leave the lights out for a few days
- Feed the tank as normal during the day, but leave the lights out, just ambient lighting
- If all is well after a few days, return the décor.

Thanks for the tip. Although I had done most of the things that you said. As for the decor I rearranged my driftwood while releasing the new fishes. I released my Oscar and knife fish at once, had to return it as it was getting beaten up. The oscars and green terror that I released were atleast 1-2inches bigger than my existing severum and buttekoferi.

Wanted to add 2 big cichlids(6-7 inch) like peacock bass/ veija syns/ jaguar or Red Devil/midas. Which among these would be the best fit ? Although I’m not as interested in veija. Would like to hear any advice.