I would agree with most that it is a space issue, but I understand why you want more fish right now.
Even a fast growing fish like an Oscar doesn't grow fast enough to immediately fill a tank. 2 6 inch Oscars in a 100 gallon looks a little lacking. Everyone around here thinks long term, but you want right now. As long as you know eventually you have a space problem with 2 full grown, possibly mated Oscars, try different kinds of fish and see what works, but don't expect to keep 5 Oscars in a 100 gallon tank long term for example.
As far as the color issue goes, I have a feeling it's space, but it might be color turning your Oscars off. Remember Cichlids are very visual animals, colors and patterns determine who wins and loses fights, who's dominite and submissive. Adding lighter colored fish may disrupt your Oscars' pecking order and chain of command. We never know what runs through the minds of our fish...
Even a fast growing fish like an Oscar doesn't grow fast enough to immediately fill a tank. 2 6 inch Oscars in a 100 gallon looks a little lacking. Everyone around here thinks long term, but you want right now. As long as you know eventually you have a space problem with 2 full grown, possibly mated Oscars, try different kinds of fish and see what works, but don't expect to keep 5 Oscars in a 100 gallon tank long term for example.
As far as the color issue goes, I have a feeling it's space, but it might be color turning your Oscars off. Remember Cichlids are very visual animals, colors and patterns determine who wins and loses fights, who's dominite and submissive. Adding lighter colored fish may disrupt your Oscars' pecking order and chain of command. We never know what runs through the minds of our fish...
