Oscar with BGK and eartheaters?

[Audaxcity]

I have a small group of 4 inch Geophagus 'Tapajos' and a 6 inch Black Ghost Knifefish.

If I get a baby Oscar, will my current fish grow fast enough to avoid eventually being eaten? I know Oscars grow quite fast in comparison.

BTW, I'm not worried about aggression, I have that covered.

 

[pops]

I have had Oscars with BKG fish with never an issue, no ideal about the other.

 

[tlindsey]

The growth rate maybe a factor but if aquarium is large enough it could work but also depends on the personality of the Oscar.

 

[Toiletcar]

It’s possible in a big enough tank. I knew someone who did it. Very cool tank. His BGK was huge, the oscar never bothered it.